100525 + Interview Questions in GENERAL QA IN GENERAL AWARENESS

1.	The nucleus of a copper atom contains how many protons? a. 1 b. 4 c. 18 d. 29
Answer» The correct answer is: (d) 29 d. 29 (The atomic no. of Copper is 29. Since atomic no. is equal to the no.of protons. The Copper has 29 protons.)

Discussion

2.	Definitions are a. Man made b. Invented c. Made up d. All of the above
Answer» (d) All of the above d. All of the above

2.

Definitions are a. Man made b. Invented c. Made up d. All of the above

Answer»

(d) All of the above

d. All of the above

Discussion

3.	Laws are proved by a. Definition b. Experiment c. Mathematics d. Formulas
Answer» (b) Experiment b. Experiment

Discussion

4.	Which is the most widely used semiconductor? a. Copper b. Germanium c. Silicon d. None of the above
Answer» The correct answer is: (c) Silicon

Discussion

5.	How many valence electrons does a silicon atom have? a. 0 b. 1 c. 2 d. 4
Answer» The correct answer is: (d) 4 d. 4 (atomic no. of silicon is 16 and so its configuration is 2,8,6)

Discussion

6.	How many electrons are there in the valence orbit of a silicon atom within a crystal? a. 1 b. 4 c. 8 d. 14
Answer» The correct answer is: (c) 8

Discussion

7.	In the 18th century England SEIZED many colonies in the old and new word. A) captured B) freed C) occupied D) lost E) gained
Answer» Correct option is B) freed

Discussion

8.	Positive ions are atoms that have a. Gained a proton b. Lost a proton c. Gained an electron d. Lost an electron
Answer» (d) Lost an electron

Discussion

9.	The resitance of the diode in forward bias condition is `20Omega` and infinity in the reverse biased condition. The current in the circuit is A. `0.08A`B. `0.1A`C. `0.04A`D. zero
Answer» Correct Answer - C `i=(V)/(R )`

Discussion

10.	Which of the following describes an n-type semiconductor? a. Neutral b. Positively charged c. Negatively charged d. Has many holes
Answer» The correct answer is: (a) Neutral

Discussion

11.	A p-type semiconductor contains holes and a. Positive ions b. Negative ions c. Pentavalent atoms d. Donor atoms
Answer» (b) Negative ions

Discussion

12.	Why does a parachute descend slowly?
Answer» The surface area of a parachute is much larger as compared to the surface area of stone. So, the air resistance in the case of a parachute is much larger than in the case of a stone. This explains as to why parachute descends slowly.

Discussion

13.	Condition for total internal reflection
Answer» Whn a ray of light, travelling from an optically denser medium into an optically rarer medium is incident at an angle greater than the critical angle for the two media ,the ray is totally reflected back into the medium , obeying the laws of reflection.This phenomenon is called total internal reflection. The two conditions for total internal reflection : 1. The ray of light must travel from a denser medium into a rarer medium. 2. The angle of incidence in the denser medium must be greater than the critical angle for that pair of media. Critical angle is that angle of incidence in a denser medium, for which the angle of refraction in the rarer medium is 90°.

Discussion

14.	Which of the following describes a p-type semiconductor? a. Neutral b. Positively charged c. Negatively charged d. Has many free electrons
Answer» The correct answer is: (a) Neutral

Discussion

15.	In an npn transistor, the majority carriers in the base are a. Free electrons b. Holes c. Neither d. Both
Answer» The correct answer is: (b) Holes

Discussion

16.	The maximum and minimum values of zener diode current are A. `6 mA`, `5mA`B. `14 mA`, `5mA`C. `9 mA`, `1mA`D. `3 mA`, `2mA`
Answer» Correct Answer - C `I_(L)=(V)/(R_(L))=(50)/(10xx10^(3))=5xx10^(-3)A=5 mA` for `80V V_(s)=30V` `I_(S)=(V_(S))/(R_(S))=(30)/(5xx10^(3))=6 mA` `:. I_(z)=1mA` (minimum current) for `120V V_(S)=70V` `I_(S)=(V_(S))/(R_(S))=(70)/(5xx10^(3))=14mA` `:. I_(z)=14-5=9mA` (maximum current)

Discussion

17.	Why objective lens of a small aperture is used in a microscope.
Answer» The microscope is used in sighting small objects situated nearby. If aperture is large then light ray coming from object expands. So intensity becomes small. If aperture is small then light coming from object expends in small aperture, as a result object is seen more bright. So, aperture is kept small.

Discussion

18.	Which of the following cannot move? a. Holes b. Free electrons c. Ions d. Majority carriers
Answer» The correct answer is: (c) Ions

Discussion

19.	What’s the total internal reflection? A ray is incident from water to air at an angle of47°. Discus nature of the reflected ray.
Answer» Total internal reflection : When the angle of incidence exceeds critical angle, light ray is totally reflected back to the same medium, no refraction of light. This phenomenon is called total internal reflection. The phenomenon occurs if the light angle of incidence is greater than a certain limit angle, called critical angle. In general, total internal reflection takes place at the boundary between two transparenal media, when a ray of light in a medium of higher index of refraction approches the other medium at angle of incidence greater than the critical angle. For a water-air surface the critical angle is 48.5°. According to given question incident angle 47°, which is less than critical angle of water to air. in this case total internal reflection will not occur.

19.

What’s the total internal reflection? A ray is incident from water to air at an angle of47°. Discus nature of the reflected ray.

Answer»

Total internal reflection : When the angle of incidence exceeds critical angle, light ray is totally reflected back to the same medium, no refraction of light. This phenomenon is called total internal reflection. The phenomenon occurs if the light angle of incidence is greater than a certain limit angle, called critical angle.

In general, total internal reflection takes place at the boundary between two transparenal media, when a ray of light in a medium of higher index of refraction approches the other medium at angle of incidence greater than the critical angle. For a water-air surface the critical angle is 48.5°.

According to given question incident angle 47°, which is less than critical angle of water to air. in this case total internal reflection will not occur.

Discussion

20.	What causes the depletion layer? a. Doping b. Recombination c. Barrier potential d. Ions
Answer» (b) Recombination

Discussion

21.	In the figure shown the potential drop across the series resistor is A. `30V`B. `60V`C. `90V`D. `120V`
Answer» Correct Answer - A `V_(s)=120-90=30V`

Discussion

22.	A transistor has a base current of `1 mA` and emitter current `100 mA`. The current transfer ratio will beA. `0.9`B. `0.99`C. `1.1`D. `10.1`
Answer» Correct Answer - B `alpha=(I_(c ))/(I_(e))`, `I_(e)=I_(b)+I_(c)`

Discussion

23.	What is the barrier potential of a silicon diode at room temperature? a. 0.3 V b. 0.7 V c. 1 V d. 2 mV per degree Celsius
Answer» The correct answer is: (b) 0.7 V

Discussion

24.	To produce a large forward current in a silicon diode, the applied voltage must be greater than a. 0 b. 0.3 V c. 0.7 V d. 1 V
Answer» The correct answer is: (c) 0.7 V

Discussion

25.	Zenar diode is operating the reverse bias the breakdown region for which the circuit diagram is as shown in the figure here take `V_(z)=7V` and `R=10KOmega` For porential differe is equal to `8v` across `AD`. What is the current through micrometer A. `1000 muA`B. `1 mA`C. `10 muA`D. `100 muA`
Answer» Correct Answer - D write `KVL` equation `1R=V_(BA)-V_(X)=8-7` `I=(1V)/(10kOmega)=100muA`

Discussion

26.	When the reverse voltage increases from 5 to 10 V, the depletion layer a. Becomes smallerb. Becomes larger c. Is unaffected d. Breaks down
Answer» (b) Becomes larger

Discussion

27.	In a silicon diode the reverse current is usually a. Very small b. Very large c. Zero d. In the breakdown region
Answer» (a) Very small

Discussion

28.	Surface-leakage current is part of the a. Forward current b. Forward breakdown c. Reverse current d. Reverse breakdown
Answer» (c) Reverse current

Discussion

29.	Diffusion of free electrons across the junction of an unbiased diode produces a. Forward bias b. Reverse bias c. Breakdown d. The depletion layer
Answer» (d) The depletion layer

Discussion

30.	A binary star consists of two stars `A(mass 2.2 M_s)` and B `(mass 11 M_s)` where `M_s` is the mass of the sun, they are separted by distane d and are rotating about their center of mass, which is stationary. The ratio of the total angular momentum of the binary to the angular momentum of star B about the centre of mass is
Answer» Correct Answer - 6

Discussion

31.	When the diode current is large, the bias is a. Forward b. Inverse c. Poor d. Reverse
Answer» The correct answer is: (a) Forward

Discussion

32.	The voltage where avalanche occurs is called the a. Barrier potential b. Depletion layer c. Knee voltage d. Breakdown voltage
Answer» (d) Breakdown voltage

Discussion

33.	Our plans may change subject ______ the weather. A) over B) with C) to D) at
Answer» Correct option is C) to

Discussion

34.	The knee voltage of a diode is approximately equal to the a. Applied voltage b. Barrier potential c. Breakdown voltage d. Forward voltage
Answer» (b) Barrier potential

Discussion

35.	“What distinguishes a successful manager from a less successful one is the ability to put the principles into practice.” Which aspect of the nature of management is highlighted in the above statement? a) Management as a science b) Management as an art c) Management as a profession d) Management is an intangible force.
Answer» (b) Management as an art

Discussion

36.	Her ability makes her successful ______ everything she does. A) on B) in C) about D) at
Answer» Correct option is B) in

Discussion

37.	In which of the following O-N-O bond angles is highest ?A. `NO_(2)^(+)`B. `NO_(3)^(-)`C. `NO_(2)^(-)`D. none
Answer» Correct Answer - A `Olarr overset(o+)(N)=P` `sp`, bond angle `=180^(@)` `180^(@)` is highest bond angle

Discussion

38.	Find the species having highest value of magnetic moment in their ground state.A. `Cu^(+)`B. `Cr^(3+)`C. `Mn^(2+)`D. `Ni^(2+)`
Answer» Correct Answer - C Magnetic moment `alpha` unpaired electrons `{:(,Cu^(+),Cr^(3+),Mn^(2+),Ni^(+2)),(,darr,darr,darr,darr),("unpaired electron",0,3,5,2):}`

Discussion

39.	Explain water gas in detail
Answer» Water gas is a fuel gas consisting mainly of carbon monoxide and hydrogen, made by passing steam over incandescent coke. H₂O+C→CO+H₂ (CO+H₂) is the water gas. The mixture of CO and H2 thus produced is known as water gas or synthesis gas. C(s) + H2O(g) ---> CO(g) + H2(g) Water gas is an important industrial fuel. Carbon monoxide in water gas can undergo further combustion forming carbon dioxide with the liberation of heat.

39.

Explain water gas in detail

Answer»

Water gas is a fuel gas consisting mainly of carbon monoxide and hydrogen, made by passing steam over incandescent coke.

H₂O+C→CO+H₂
(CO+H₂) is the water gas.

The mixture of CO and H2 thus produced is known as water gas or synthesis gas.

C(s) + H2O(g) ---> CO(g) + H2(g)

Water gas is an important industrial fuel. Carbon monoxide in water gas can undergo further combustion forming carbon dioxide with the liberation of heat.

Discussion

40.	Find the sum of n terms of the series 1.2.4 + 2.3.5 + 3.4.6 + … (a) n(n + 1)(n + 2) (b) (n(n + 1)/12)(3n2 + 19n + 26) (c) ((n + 1)(n + 2)(n + 3))/4 (d) (n2 (n + 1)(n + 2)(n + 3))/3
Answer» In order to solve such problems in the examination, the option-based approach is the best. Even if you can find out the required expression mathematically, it is advisable to solve through the options as this will end up saving a lot of time for you. Use the options as follows: If we put n = 1, we should get the sum as 1.2.4 = 8. By substituting n = 1 in each of the four options we will get the following values for the sum to 1 term: Option (a) gives a value of: 6 Option (b) gives a value of: 8 Option (c) gives a value of: 6 Option (d) gives a value of: 8 From this check we can reject the options (a) and (c). Now put n = 2. You can see that up to 2 terms, the expression is 1.2.4 + 2.3.5 = 38. The correct option should also give 38 if we put n = 2 in the expression. Since, (a) and (c) have already been rejected, we only need to check for options (b) and (d). Option (b) gives a value of 38. Option (d) gives a value of 80. Hence, we can reject option (d) and get (b) as the answer

40.

Find the sum of n terms of the series 1.2.4 + 2.3.5 + 3.4.6 + … (a) n(n + 1)(n + 2) (b) (n(n + 1)/12)(3n2 + 19n + 26) (c) ((n + 1)(n + 2)(n + 3))/4 (d) (n2 (n + 1)(n + 2)(n + 3))/3

Answer»

In order to solve such problems in the examination, the option-based approach is the best. Even if you can find out the required expression mathematically, it is advisable to solve through the options as this will end up saving a lot of time for you. Use the options as follows:

If we put n = 1, we should get the sum as 1.2.4 = 8. By substituting n = 1 in each of the four options we will get the following values for the sum to 1 term:

Option (a) gives a value of: 6 Option

(b) gives a value of: 8 Option

(c) gives a value of: 6 Option

(d) gives a value of: 8

From this check we can reject the options (a) and (c).

Now put n = 2. You can see that up to 2 terms, the expression is 1.2.4 + 2.3.5 = 38.

The correct option should also give 38 if we put n = 2 in the expression. Since, (a) and (c) have already been rejected, we only need to check for options (b) and (d).

Option (b) gives a value of 38.

Option (d) gives a value of 80.

Hence, we can reject option (d) and get (b) as the answer

Discussion

41.	Select the order of ionic radii :A. `Te^(2-) gt Se^(2-) gt S^(2-) gt O^(2-)`B. `Te^(2-) gt Se^(2-) gt S^(2-) gt O^(2-)`C. `Te^(2-) =Se^(2-) gt S^(2-) =O^(2-)`D. None
Answer» Correct Answer - A `{:(O^(2-)),(S^(2-)),(Se^(2-)),(Te^(2-)):}darr` `underset("(Size increases in group)")("Size" uarr)`

Discussion

42.	There is an AP 11, 13, 15.... Which term of this AP is 65?(a) 25th(b) 26th(c) 27th(d) 28th
Answer» Correct option (d) 28^th Explanation: The number of terms in a series are found by: (Difference between first and last terms+1/Common Difference) = (65-11)/ 2+1 = 27 + 1= 28^th term

42.

There is an AP 11, 13, 15.... Which term of this AP is 65?(a) 25th(b) 26th(c) 27th(d) 28th

Answer»

Correct option (d) 28^th

Explanation:

The number of terms in a series are found by:

(Difference between first and last terms+1/Common Difference)

= (65-11)/ 2+1

= 27 + 1= 28^th term

Discussion

43.	Identify the option containing maximum number of atomsA. 18 mg of glucoseB. 2 mg of hydrogenC. 10 mg of `H_(2)O`D. 7.8 mg of benzene
Answer» Correct Answer - A `(A) C_(6)H_(12)O_(6)rArr 18/200xx24=2.4` mm of atom `(B) H_(2) rArr 2/2xx2` mm=2mm of atom `(C) H_(2)OrArr 10/10 xx3=1.66` mm of atom (D)` C_(6)H_(6) rArr 7.8/78xx12=1.2` mm of atom

Discussion

44.	Which one of the following statements is FALSE?1. Context-free grammar can be used to specify both lexical and syntax rules.2. Type checking is done before parsing3. High level language programs can be translated to different Intermediate Representations4. Arguments to a function can be passed using the program stack
Answer» Correct Answer - Option 2 : Type checking is done before parsing Type checking performs at the semantic analysis phase, and parsing performs at the syntax analysis phase. Since the Syntax analysis phase comes before semantic analysis, therefore Type Checking is always done after parsing. Therefore Option 2 is false and is the correct answer.

Discussion

45.	A= a + A1 + A2 + …..+ AN + b B = a + G1+ G2+ ….+ GN + bA is the sum of n + 2 terms of an A.P. with first term a & last term b.B is the sum of n + 2 terms of a G.P. with first term a &last term b.Then, what can be said about the relative values of A & B?
Answer» We can easily solve these problems by considering suitable values. Let G.P. be 1, 2, 4, 8, 16, 32 and A.P. be 1, 7.2, 13.4, 19.6, 25.8, 32. A = 99, B = 63. So A > B

45.

A= a + A1 + A2 + …..+ AN + b B = a + G1+ G2+ ….+ GN + bA is the sum of n + 2 terms of an A.P. with first term a & last term b.B is the sum of n + 2 terms of a G.P. with first term a &last term b.Then, what can be said about the relative values of A & B?

Answer»

We can easily solve these problems by considering suitable values.

Let G.P. be 1, 2, 4, 8, 16, 32 and A.P. be 1, 7.2, 13.4, 19.6, 25.8, 32.

A = 99, B = 63. So A > B

Discussion

46.	Explain the features of Dictatorial Government.
Answer» 1. Absolute power: Dictatorship is characterized by absolute power where the dictator controls the constitution. He can make and unmake laws. All the laws must originate from him and there is neither a limit on his tenure nor is he subjected to any other authority. 2. Based on Force: Dictatorship stands on the twin pillars of force and coercion. The word of the dictator should be honored in letter and spirit. Any violation of the order may result in severe punishment or even death. 3. Totalitarian state: Dictatorial regimes regulate and control all aspects of human existence. It provides security, basic necessities such as food, shelter and clothing, education and order in the society. In totalitarian state’s individual personality is suppressed and all aspects of an individual is regimented and brought under the control of the state. The totalitarian approach is well summarized by Mussolini when he says “Everything within the state, nothing above the state, nothing outside the State’. Thus, State is the central point around which all human activities must revolve. 4. One Nation one party: In a dictatorship, for the whole state, there is only one constitution and the administration is managed by one single party and that is responsible for the whole state. Any kind of criticism of the party or the leadership is not tolerated. The distinct feature of dictatorship is its intolerance to criticism and new ideas. 5. No individual liberty: In a dictatorship, individual freedom and liberty do not find place. Freedom of thought and expression is restricted.

46.

Explain the features of Dictatorial Government.

Answer»

1. Absolute power: Dictatorship is characterized by absolute power where the dictator controls the constitution. He can make and unmake laws. All the laws must originate from him and there is neither a limit on his tenure nor is he subjected to any other authority.

2. Based on Force: Dictatorship stands on the twin pillars of force and coercion. The word of the dictator should be honored in letter and spirit. Any violation of the order may result in severe punishment or even death.

3. Totalitarian state: Dictatorial regimes regulate and control all aspects of human existence. It provides security, basic necessities such as food, shelter and clothing, education and order in the society. In totalitarian state’s individual personality is suppressed and all aspects of an individual is regimented and brought under the control of the state.

The totalitarian approach is well summarized by Mussolini when he says “Everything within the state, nothing above the state, nothing outside the State’. Thus, State is the central point around which all human activities must revolve.

4. One Nation one party: In a dictatorship, for the whole state, there is only one constitution and the administration is managed by one single party and that is responsible for the whole state. Any kind of criticism of the party or the leadership is not tolerated. The distinct feature of dictatorship is its intolerance to criticism and new ideas.

5. No individual liberty: In a dictatorship, individual freedom and liberty do not find place. Freedom of thought and expression is restricted.

Discussion

47.	a constant current I in a strip line conductor ,resistivity of which increases monotonically in the direction of the current flow.if resistivities at cross sections A and B are ra and rb ,the excess charge accumulated in the section AB is
Answer» _ρA∫^ρ_B dρ = ρ]^ρ_B_ρA ρ = ρ_B- ρ_A J = I/A ∴ E/ρ = I/A \(\frac{Q}{4\pi\varepsilon_0.r^2-\rho}\) = I/A Q = ɛ₀.4πr².ρ.\(\frac{I}{4\pi r^2}\) = ɛ₀(ρ_B - ρ_A) I.

47.

a constant current I in a strip line conductor ,resistivity of which increases monotonically in the direction of the current flow.if resistivities at cross sections A and B are ra and rb ,the excess charge accumulated in the section AB is

Answer»

_ρA∫^ρ_B dρ = ρ]^ρ_B_ρA

ρ = ρ_B- ρ_A

J = I/A

∴ E/ρ = I/A

\(\frac{Q}{4\pi\varepsilon_0.r^2-\rho}\) = I/A

Q = ɛ₀.4πr².ρ.\(\frac{I}{4\pi r^2}\) = ɛ₀(ρ_B - ρ_A) I.

Discussion

48.	Who is the father of Political Science?
Answer» Aristotle is known as father of Political Science.

Discussion

49.	Name the supreme association of ail associations.
Answer» ‘Polis’ means Greek City-States.

Discussion

50.	Mention the branches of science which provide evidence to organic evolution.
Answer» Paleontology (fossil study) Comparative morphological studies Biochemistry-physiology Molecular biology

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The nucleus of a copper atom contains how many protons? a. 1 b. 4 c. 18 d. 29

Definitions are a. Man made b. Invented c. Made up d. All of the above

Laws are proved by a. Definition b. Experiment c. Mathematics d. Formulas

Which is the most widely used semiconductor? a. Copper b. Germanium c. Silicon d. None of the above

How many valence electrons does a silicon atom have? a. 0 b. 1 c. 2 d. 4

How many electrons are there in the valence orbit of a silicon atom within a crystal? a. 1 b. 4 c. 8 d. 14

In the 18th century England SEIZED many colonies in the old and new word. A) captured B) freed C) occupied D) lost E) gained

Positive ions are atoms that have a. Gained a proton b. Lost a proton c. Gained an electron d. Lost an electron

The resitance of the diode in forward bias condition is `20Omega` and infinity in the reverse biased condition. The current in the circuit is A. `0.08A`B. `0.1A`C. `0.04A`D. zero

Which of the following describes an n-type semiconductor? a. Neutral b. Positively charged c. Negatively charged d. Has many holes

A p-type semiconductor contains holes and a. Positive ions b. Negative ions c. Pentavalent atoms d. Donor atoms

Why does a parachute descend slowly?

Condition for total internal reflection

Which of the following describes a p-type semiconductor? a. Neutral b. Positively charged c. Negatively charged d. Has many free electrons

In an npn transistor, the majority carriers in the base are a. Free electrons b. Holes c. Neither d. Both

The maximum and minimum values of zener diode current are A. `6 mA`, `5mA`B. `14 mA`, `5mA`C. `9 mA`, `1mA`D. `3 mA`, `2mA`

Why objective lens of a small aperture is used in a microscope.

Which of the following cannot move? a. Holes b. Free electrons c. Ions d. Majority carriers

What’s the total internal reflection? A ray is incident from water to air at an angle of47°. Discus nature of the reflected ray.

What causes the depletion layer? a. Doping b. Recombination c. Barrier potential d. Ions

In the figure shown the potential drop across the series resistor is A. `30V`B. `60V`C. `90V`D. `120V`

A transistor has a base current of `1 mA` and emitter current `100 mA`. The current transfer ratio will beA. `0.9`B. `0.99`C. `1.1`D. `10.1`

What is the barrier potential of a silicon diode at room temperature? a. 0.3 V b. 0.7 V c. 1 V d. 2 mV per degree Celsius

To produce a large forward current in a silicon diode, the applied voltage must be greater than a. 0 b. 0.3 V c. 0.7 V d. 1 V

Zenar diode is operating the reverse bias the breakdown region for which the circuit diagram is as shown in the figure here take `V_(z)=7V` and `R=10KOmega` For porential differe is equal to `8v` across `AD`. What is the current through micrometer A. `1000 muA`B. `1 mA`C. `10 muA`D. `100 muA`

When the reverse voltage increases from 5 to 10 V, the depletion layer a. Becomes smallerb. Becomes larger c. Is unaffected d. Breaks down

In a silicon diode the reverse current is usually a. Very small b. Very large c. Zero d. In the breakdown region

Surface-leakage current is part of the a. Forward current b. Forward breakdown c. Reverse current d. Reverse breakdown

Diffusion of free electrons across the junction of an unbiased diode produces a. Forward bias b. Reverse bias c. Breakdown d. The depletion layer

When the diode current is large, the bias is a. Forward b. Inverse c. Poor d. Reverse

The voltage where avalanche occurs is called the a. Barrier potential b. Depletion layer c. Knee voltage d. Breakdown voltage

Our plans may change subject ______ the weather. A) over B) with C) to D) at

The knee voltage of a diode is approximately equal to the a. Applied voltage b. Barrier potential c. Breakdown voltage d. Forward voltage

Her ability makes her successful ______ everything she does. A) on B) in C) about D) at

In which of the following O-N-O bond angles is highest ?A. `NO_(2)^(+)`B. `NO_(3)^(-)`C. `NO_(2)^(-)`D. none

Find the species having highest value of magnetic moment in their ground state.A. `Cu^(+)`B. `Cr^(3+)`C. `Mn^(2+)`D. `Ni^(2+)`

Explain water gas in detail

Find the sum of n terms of the series 1.2.4 + 2.3.5 + 3.4.6 + … (a) n(n + 1)(n + 2) (b) (n(n + 1)/12)(3n2 + 19n + 26) (c) ((n + 1)(n + 2)(n + 3))/4 (d) (n2 (n + 1)(n + 2)(n + 3))/3

Select the order of ionic radii :A. `Te^(2-) gt Se^(2-) gt S^(2-) gt O^(2-)`B. `Te^(2-) gt Se^(2-) gt S^(2-) gt O^(2-)`C. `Te^(2-) =Se^(2-) gt S^(2-) =O^(2-)`D. None

There is an AP 11, 13, 15.... Which term of this AP is 65?(a) 25th(b) 26th(c) 27th(d) 28th

Identify the option containing maximum number of atomsA. 18 mg of glucoseB. 2 mg of hydrogenC. 10 mg of `H_(2)O`D. 7.8 mg of benzene

A= a + A1 + A2 + …..+ AN + b B = a + G1+ G2+ ….+ GN + bA is the sum of n + 2 terms of an A.P. with first term a &amp; last term b.B is the sum of n + 2 terms of a G.P. with first term a &amp;last term b.Then, what can be said about the relative values of A &amp; B?

Explain the features of Dictatorial Government.

a constant current I in a strip line conductor ,resistivity of which increases monotonically in the direction of the current flow.if resistivities at cross sections A and B are ra and rb ,the excess charge accumulated in the section AB is

Who is the father of Political Science?

Name the supreme association of ail associations.

Mention the branches of science which provide evidence to organic evolution.

A= a + A1 + A2 + …..+ AN + b B = a + G1+ G2+ ….+ GN + bA is the sum of n + 2 terms of an A.P. with first term a & last term b.B is the sum of n + 2 terms of a G.P. with first term a &last term b.Then, what can be said about the relative values of A & B?