10223 + Interview Questions in Chemistry Page 45 InterviewSolution

2201.	Difference between enthalpy of solution and enthalpy of dilution?
Answer» Difference between enthalpy of solution and enthalpy of dilution?

Discussion

2202.	Electronic configuration of few Elements are given below :A : 2,8,1B : 2,8,4C : 2,8,8,1D : 2,8,7Which element is having highest ionisation energy?
Answer» Electronic configuration of few Elements are given below : A : 2,8,1 B : 2,8,4 C : 2,8,8,1 D : 2,8,7 Which element is having highest ionisation energy?

Discussion

2203.	46. 20ml ofCO is exploded with 30 ml of O2 at constant temperature and pressure. Final volume of gases in ml will be a) 35 b) 40 c) 50 d) 60
Answer» 46. 20ml ofCO is exploded with 30 ml of O2 at constant temperature and pressure. Final volume of gases in ml will be a) 35 b) 40 c) 50 d) 60

Discussion

2204.	Benzoic acid and phenol can be distinguished by. 1.NaHCo3 2.Br2 water 3.Tollens reagent 4.lucas reagent
Answer» Benzoic acid and phenol can be distinguished by. 1.NaHCo3 2.Br2 water 3.Tollens reagent 4.lucas reagent

Discussion

2205.	79. When 0.1 mole CoCl(NH3)5 is treated with excess of AgNO3,0.2 mole of AgCl are obtained. The conductivity of solution will correspond to (1) 1:3 electrolyte (2) 1:2 electrolyte (3) 1:1 electrolyte (4) 3:1 electrolyte
Answer» 79. When 0.1 mole CoCl(NH3)5 is treated with excess of AgNO3,0.2 mole of AgCl are obtained. The conductivity of solution will correspond to (1) 1:3 electrolyte (2) 1:2 electrolyte (3) 1:1 electrolyte (4) 3:1 electrolyte

Discussion

2206.	how to identify whether the compound is polar or not
Answer» how to identify whether the compound is polar or not

Discussion

2207.	Identify the odd termA. Gold, silver, iron, diamondB. Ductility, brittelness, sonority, malleabilityC. Carbon, bromic, sulphur, phosphorusD. Brass, bronze, iron, steel
Answer» Identify the odd term A. Gold, silver, iron, diamond B. Ductility, brittelness, sonority, malleability C. Carbon, bromic, sulphur, phosphorus D. Brass, bronze, iron, steel

Discussion

2208.	In [B4O5(OH)4]2−, the number of boron atoms having an octet of electron is:
Answer» In $[B_{4} O_{5} (O H)_{4}]^{2 -},$ the number of boron atoms having an octet of electron is:

Discussion

2209.	97 For the reaction N203 to N0& N02,if total pressure isPatm and amount of dissociation is50%,the value of Kp will be
Answer» 97 For the reaction N203 to N0& N02,if total pressure isPatm and amount of dissociation is50%,the value of Kp will be

Discussion

2210.	How to know to which group does an electron isWhen it's atomic no is 21
Answer» How to know to which group does an electron is When it's atomic no is 21

Discussion

2211.	Why does pairing of 3d electrons occur in case of [Co(NH3)6]3+ and doesn't occur in case of [Ni(NH3)6]2+?
Answer» Why does pairing of 3d electrons occur in case of [Co(NH3)6]3+ and doesn't occur in case of [Ni(NH3)6]2+?

Discussion

2212.	Nitrogen occurs in nature in the form of two isotopes of atomic mass 14 and 15 respectively. If average atomic mass of Nitrogen is 14. What is the% abundance of the two isotopes?
Answer» Nitrogen occurs in nature in the form of two isotopes of atomic mass 14 and 15 respectively. If average atomic mass of Nitrogen is 14. What is the% abundance of the two isotopes?

Discussion

2213.	Which of the following substances is an element?
Answer» Which of the following substances is an element?

Discussion

2214.	When x grams of carbon are heated with y grams of oxygen in a closed vessel, no solid residue is left behind. Which of the following statements is correct?
Answer» When x grams of carbon are heated with y grams of oxygen in a closed vessel, no solid residue is left behind. Which of the following statements is correct?

Discussion

2215.	In the complex ion [Fe(EDTA)]^- the coordination number and oxidation state of central metal ion is :- (1) C.N = 6, O.N = +3 (2) C.N = 1, O.N = -1 (3) C.N = 4, O.N = +2 (4) C.N = 3, O.N = +3
Answer» In the complex ion [Fe(EDTA)]^- the coordination number and oxidation state of central metal ion is :- (1) C.N = 6, O.N = +3 (2) C.N = 1, O.N = -1 (3) C.N = 4, O.N = +2 (4) C.N = 3, O.N = +3

Discussion

2216.	What happens when Iron reacts with a solution of concentrated nitric acid?
Answer» What happens when Iron reacts with a solution of concentrated nitric acid?

Discussion

2217.	kindly explain 1,2 elimination with an exmaple
Answer» kindly explain 1,2 elimination with an exmaple

Discussion

2218.	What do you mean by volume of gases?
Answer» What do you mean by volume of gases?

Discussion

2219.	In a face centred cubic lattice, the nearest distance between two atoms is :Here,a:Edge cell length
Answer» In a face centred cubic lattice, the nearest distance between two atoms is : Here, $a : Edge cell length$

Discussion

2220.	Pick out the asymmetrical animal from the following options.
Answer» Pick out the asymmetrical animal from the following options.

Discussion

2221.	Order of nucleophilicity in f-, cl-, be-,and I -
Answer» Order of nucleophilicity in f-, cl-, be-,and I -

Discussion

2222.	Principles of radioactive dating
Answer» Principles of radioactive dating

Discussion

2223.	Which of the following is not oxidised by MnO2 ?
Answer» Which of the following is not oxidised by $M n O_{2}$ ?

Discussion

2224.	What is the maximum number of electrons present in the L shell ?
Answer» What is the maximum number of electrons present in the L shell ?

Discussion

2225.	Why milk is a mixture not solution?
Answer» Why milk is a mixture not solution?

Discussion

2226.	200g ice at -20^° C is mixed with 500g of water in 20^° Cin an insulating vessel. find mass of water in vessel
Answer» 200g ice at -20^° C is mixed with 500g of water in 20^° Cin an insulating vessel. find mass of water in vessel

Discussion

2227.	Why Bohr model can not explain the spectra of multi electron system
Answer» Why Bohr model can not explain the spectra of multi electron system

Discussion

2228.	The temperature in fahrenheit scale is given by: "32 more than nine-fifth of the temperature in celcius". Frame an expression to validating the statement. Using the expression, convert 42° C in fahrenheit scale.
Answer» The temperature in fahrenheit scale is given by: "32 more than nine-fifth of the temperature in celcius". Frame an expression to validating the statement. Using the expression, convert $42 ° C$ in fahrenheit scale.

Discussion

2229.	Balance the given equation: Cu + H2SO4 ➡ CuSO4 + SO2 ⬆ + H2O
Answer» Balance the given equation: Cu + H2SO4 ➡ CuSO4 + SO2 ⬆ + H2O

2229.

Balance the given equation: Cu + H2SO4 ➡ CuSO4 + SO2 ⬆ + H2O

Answer»

Balance the given equation:

Cu + H2SO4 ➡ CuSO4 + SO2 ⬆ + H2O

Discussion

2230.	Explain ionization energy with the help of examples
Answer» Explain ionization energy with the help of examples

Discussion

2231.	What is the difference between solubility and saturation?
Answer» What is the difference between solubility and saturation?

Discussion

2232.	What is the basicity of oleum?
Answer» What is the basicity of oleum?

Discussion

2233.	6. 200g of ice at -20^° C is mixed with 500g of water at 20^° C in an insulating vessel.Final masd of water in vessel is (Specific heat of ice = 0.5 cal per gram per degree Celsius
Answer» 6. 200g of ice at -20^° C is mixed with 500g of water at 20^° C in an insulating vessel.Final masd of water in vessel is (Specific heat of ice = 0.5 cal per gram per degree Celsius

Discussion

2234.	What is a catalytic convertor
Answer» What is a catalytic convertor

Discussion

2235.	The alloy of which of the following metals, is usually used for making bells?
Answer» The alloy of which of the following metals, is usually used for making bells?

Discussion

2236.	Difference between centigrade and Celsius
Answer» Difference between centigrade and Celsius

Discussion

2237.	Is alcohol pure or impure?
Answer» Is alcohol pure or impure?

Discussion

2238.	Select the correct statement that is proposed by Neils Bohr regarding the model of an atom.
Answer» Select the correct statement that is proposed by Neils Bohr regarding the model of an atom.

Discussion

2239.	Which of the following types of medicine is used for the treatment of indigestion?
Answer» Which of the following types of medicine is used for the treatment of indigestion?

Discussion

2240.	54.One mole of monoatomic gas and 3 moles of diatomic gas are put together in a container. The molar specific heat at constant volume will be in J/K??
Answer» 54.One mole of monoatomic gas and 3 moles of diatomic gas are put together in a container. The molar specific heat at constant volume will be in J/K??

Discussion

2241.	Can 1 M NiSO, be stored in a vessel made up of copper?Eo ni+2/ni1.20 V and E0.34 V
Answer» Can 1 M NiSO, be stored in a vessel made up of copper?Eo ni+2/ni1.20 V and E0.34 V

Discussion

2242.	Why 1p,2d,3f is not possible in electronic configuration of sub-shell?
Answer» Why 1p,2d,3f is not possible in electronic configuration of sub-shell?

Discussion

2243.	A radio-active substance of mass 1 gm has radio-active decay rate 1 curie. Atomic mass 226. Find mean life?
Answer» A radio-active substance of mass 1 gm has radio-active decay rate 1 curie. Atomic mass 226. Find mean life?

Discussion

2244.	A neutral atom has an atomic mass of 12 and has 6 neutrons. Find how many electrons, protons and shells are present in this atom.
Answer» A neutral atom has an atomic mass of 12 and has 6 neutrons. Find how many electrons, protons and shells are present in this atom.

Discussion

2245.	65.Why an atom looses its energy while getting converted to molecular form?
Answer» 65.Why an atom looses its energy while getting converted to molecular form?

Discussion

2246.	A solution has a pH value of 2. It can be concluded that the given solution is _______ in nature.
Answer» A solution has a pH value of 2. It can be concluded that the given solution is _______ in nature.

Discussion

2247.	The max no. Of molecules is present in a) 15 l of water at STPb) 15 l of h2o at STPc) 15 g of ice d) same in all
Answer» The max no. Of molecules is present in a) 15 l of water at STP b) 15 l of h2o at STP c) 15 g of ice d) same in all

Discussion

2248.	Which one of the following statements best describes Boyle's law?
Answer» Which one of the following statements best describes Boyle's law?

Discussion

2249.	a punctured tyre becomes flat more easily in summer than in winter .why?
Answer» a punctured tyre becomes flat more easily in summer than in winter .why?

Discussion

2250.	Which of the following are the uses of CO2?
Answer» Which of the following are the uses of ${CO}_{2}$ ?

Discussion

Explore topic-wise InterviewSolutions in .

Difference between enthalpy of solution and enthalpy of dilution?

Electronic configuration of few Elements are given below :A : 2,8,1B : 2,8,4C : 2,8,8,1D : 2,8,7Which element is having highest ionisation energy?

46. 20ml ofCO is exploded with 30 ml of O2 at constant temperature and pressure. Final volume of gases in ml will be a) 35 b) 40 c) 50 d) 60

Benzoic acid and phenol can be distinguished by. 1.NaHCo3 2.Br2 water 3.Tollens reagent 4.lucas reagent

79. When 0.1 mole CoCl(NH3)5 is treated with excess of AgNO3,0.2 mole of AgCl are obtained. The conductivity of solution will correspond to (1) 1:3 electrolyte (2) 1:2 electrolyte (3) 1:1 electrolyte (4) 3:1 electrolyte

how to identify whether the compound is polar or not

Identify the odd termA. Gold, silver, iron, diamondB. Ductility, brittelness, sonority, malleabilityC. Carbon, bromic, sulphur, phosphorusD. Brass, bronze, iron, steel

In [B4O5(OH)4]2−, the number of boron atoms having an octet of electron is:

97 For the reaction N203 to N0& N02,if total pressure isPatm and amount of dissociation is50%,the value of Kp will be

How to know to which group does an electron isWhen it's atomic no is 21

Why does pairing of 3d electrons occur in case of [Co(NH3)6]3+ and doesn't occur in case of [Ni(NH3)6]2+?

Nitrogen occurs in nature in the form of two isotopes of atomic mass 14 and 15 respectively. If average atomic mass of Nitrogen is 14. What is the% abundance of the two isotopes?

Which of the following substances is an element?

When x grams of carbon are heated with y grams of oxygen in a closed vessel, no solid residue is left behind. Which of the following statements is correct?

In the complex ion [Fe(EDTA)]^- the coordination number and oxidation state of central metal ion is :- (1) C.N = 6, O.N = +3 (2) C.N = 1, O.N = -1 (3) C.N = 4, O.N = +2 (4) C.N = 3, O.N = +3

What happens when Iron reacts with a solution of concentrated nitric acid?

kindly explain 1,2 elimination with an exmaple

What do you mean by volume of gases?

In a face centred cubic lattice, the nearest distance between two atoms is :Here,a:Edge cell length

Pick out the asymmetrical animal from the following options.

Order of nucleophilicity in f-, cl-, be-,and I -

Principles of radioactive dating

Which of the following is not oxidised by MnO2 ?

What is the maximum number of electrons present in the L shell ?

Why milk is a mixture not solution?

200g ice at -20^° C is mixed with 500g of water in 20^° Cin an insulating vessel. find mass of water in vessel

Why Bohr model can not explain the spectra of multi electron system

The temperature in fahrenheit scale is given by: "32 more than nine-fifth of the temperature in celcius". Frame an expression to validating the statement. Using the expression, convert 42° C in fahrenheit scale.

Balance the given equation: Cu + H2SO4 ➡ CuSO4 + SO2 ⬆ + H2O

Explain ionization energy with the help of examples

What is the difference between solubility and saturation?

What is the basicity of oleum?

6. 200g of ice at -20^° C is mixed with 500g of water at 20^° C in an insulating vessel.Final masd of water in vessel is (Specific heat of ice = 0.5 cal per gram per degree Celsius

What is a catalytic convertor

The alloy of which of the following metals, is usually used for making bells?

Difference between centigrade and Celsius

Is alcohol pure or impure?

Select the correct statement that is proposed by Neils Bohr regarding the model of an atom.

Which of the following types of medicine is used for the treatment of indigestion?

54.One mole of monoatomic gas and 3 moles of diatomic gas are put together in a container. The molar specific heat at constant volume will be in J/K??

Can 1 M NiSO, be stored in a vessel made up of copper?Eo ni+2/ni1.20 V and E0.34 V

Why 1p,2d,3f is not possible in electronic configuration of sub-shell?

A radio-active substance of mass 1 gm has radio-active decay rate 1 curie. Atomic mass 226. Find mean life?

A neutral atom has an atomic mass of 12 and has 6 neutrons. Find how many electrons, protons and shells are present in this atom.

65.Why an atom looses its energy while getting converted to molecular form?

A solution has a pH value of 2. It can be concluded that the given solution is _______ in nature.

The max no. Of molecules is present in a) 15 l of water at STPb) 15 l of h2o at STPc) 15 g of ice d) same in all

Which one of the following statements best describes Boyle's law?

a punctured tyre becomes flat more easily in summer than in winter .why?

Which of the following are the uses of CO2?