46295 + Interview Questions in Chemistry Page 60 InterviewSolution

2951.	the chrges +2μ c&+8μ c are placed at two verticesof equaliterial of side 1m the potential at the vertex of triangl
Answer» the chrges +2μ c&+8μ c are placed at two verticesof equaliterial of side 1m the potential at the vertex of triangl

Discussion

2952.	Solve 4•56 and 6ke uper bar
Answer» Solve 4•56 and 6ke uper bar

Discussion

2953.	In the electrolytic refining of Copper (electrolyte is CuSO4 solution + dil H2SO4 ;Pure Cu cathode and Impure Cu anode), metallic impurities having lower oxidation potential than Cu are deposited as __ sludge.
Answer» In the electrolytic refining of Copper (electrolyte is $C u S O_{4}$ solution + dil $H_{2} S O_{4}$ _;Pure Cu cathode and Impure Cu anode), metallic impurities having lower oxidation potential than Cu are deposited as __ sludge.

Discussion

2954.	1.5 g of an unknown substance was dissolved in 7.5 g of camphor and it was found that the melting point of camphor was depressed by 5.3K. If Kf is 39.75 K kg mol−1, find the molecular mass of the solute.
Answer» $1.5 g$ of an unknown substance was dissolved in $7.5 g$ of camphor and it was found that the melting point of camphor was depressed by $5.3 K$ . If $K_{f}$ is $39.75 K k g m o l^{- 1}$ , find the molecular mass of the solute.

Discussion

2955.	How many of the following reactions will produce 1-methylcyclohexanolas major product?
Answer» How many of the following reactions will produce $1-methylcyclohexanol$ as major product?

Discussion

2956.	does CCL3CHO give cannizaro reaction
Answer» does CCL3CHO give cannizaro reaction

Discussion

2957.	The total number of electron in 2.0g of D2O to that in 1.8 g of H2
Answer» The total number of electron in 2.0g of D2O to that in 1.8 g of H2

Discussion

2958.	Among the following complexes, the one which shows zero crystal field stabilization energy (CFSE) is:
Answer» Among the following complexes, the one which shows zero crystal field stabilization energy (CFSE) is:

Discussion

2959.	How many space lattices (bravais lattices) are obtainable from the different crystal systems?
Answer» How many space lattices (bravais lattices) are obtainable from the different crystal systems?

Discussion

2960.	the surface energy possessed by a soap bubble,having surface tension equal to 0.04N/m of diameter 1cm,is
Answer» the surface energy possessed by a soap bubble,having surface tension equal to 0.04N/m of diameter 1cm,is

Discussion

2961.	The total number of reducing sugars among the following is:
Answer» The total number of reducing sugars among the following is:

Discussion

2962.	48. n-factor of KI when treated with alkaline KMnO4 solution is 1)2 2)3 3)5 4)6
Answer» 48. n-factor of KI when treated with alkaline KMnO4 solution is 1)2 2)3 3)5 4)6

Discussion

2963.	graph between mean free path and number of density of molecules
Answer» graph between mean free path and number of density of molecules

Discussion

2964.	Triaminobenzene is a [BHU 1996]
Answer» Triaminobenzene is a [BHU 1996]

2964.

Triaminobenzene is a [BHU 1996]

Answer»

Triaminobenzene is a

[BHU 1996]

Discussion

2965.	The amount of heat Q,used to heat up a substance depends on its mass m, its specific heat capacity (s) and the change in temperature ∆T of the substance. Using dimentional meathod, find the expression for s is (Given [s]=[L^2T^-2K^-1]) is?
Answer» The amount of heat Q,used to heat up a substance depends on its mass m, its specific heat capacity (s) and the change in temperature ∆T of the substance. Using dimentional meathod, find the expression for s is (Given [s]=[L^2T^-2K^-1]) is?

Discussion

2966.	MAD : JXA : : RUN : ?
Answer» MAD : JXA : : RUN : ?

Discussion

2967.	Theelectron energy in hydrogen atom is given by En= (–2.18 × 10–18)/n2J. Calculate the energy required to remove an electron completelyfrom the n= 2 orbit. What is the longest wavelength of light in cm that can beused to cause this transition?
Answer» The electron energy in hydrogen atom is given by E_n = (–2.18 × 10^–18)/n² J. Calculate the energy required to remove an electron completely from the n = 2 orbit. What is the longest wavelength of light in cm that can be used to cause this transition?

Discussion

2968.	27. Orbital arc of earth of 1AU subtends an angle 10 seconds at a point .The distance of that point from earth is ? a.10 parsecs b. 10 parsec c.1 parsec d. 0.1parsec
Answer» 27. Orbital arc of earth of 1AU subtends an angle 10 seconds at a point .The distance of that point from earth is ? a.10 parsecs b. 10 parsec c.1 parsec d. 0.1parsec

Discussion

2969.	Relate formula with linear density, diameter, density
Answer» Relate formula with linear density, diameter, density

Discussion

2970.	Addition of excess aqueous ammonia to a pink coloured aqueous solution of MCl2.H2O(x) and NH4Cl gives an octahedral complex Y in the presence of air. In aqueous solution, complex Y behaves as 1:3 electrolyte. The reaction of X with excess HCl at room temperature results in the formation of a blue coloured complex Z. The calculated spin only magnetic moment of X and Z is 3.87 B.M., whereas it is zero for complex Y. Among the following options, which statemet(s) is (are) correct?
Answer» Addition of excess aqueous ammonia to a pink coloured aqueous solution of $M C l_{2} . H_{2} O (x) a n d N H_{4} C l$ gives an octahedral complex Y in the presence of air. In aqueous solution, complex Y behaves as 1:3 electrolyte. The reaction of X with excess HCl at room temperature results in the formation of a blue coloured complex Z. The calculated spin only magnetic moment of X and Z is 3.87 B.M., whereas it is zero for complex Y. Among the following options, which statemet(s) is (are) correct?

Discussion

2971.	The homolytic breaking of the Ca−Cb bond is easiest in:
Answer» The homolytic breaking of the $C^{a} - C^{b}$ bond is easiest in:

Discussion

2972.	How many mole are there in mg3(po4)2 if oxygen has 0.25mole
Answer» How many mole are there in mg3(po4)2 if oxygen has 0.25mole

Discussion

2973.	An example of a basic buffer is:
Answer» An example of a basic buffer is:

Discussion

2974.	The OH− concentration in a mixture of 5.0mL of 0.0504 MNH4Cl and 2 mL of 0.0210MNH3 solution is x×10−6M. The value of x is .......(Nearest integer) [Given KW=1×10−14andKb=1.8×10−5]
Answer» The $O H^{-}$ concentration in a mixture of 5.0mL of 0.0504 M $N H_{4} C l$ and 2 mL of $0.0210 M N H_{3}$ solution is $x \times 10^{- 6} M$ . The value of x is .......(Nearest integer) [Given $K_{W} = 1 \times 10^{- 14} a n d K b = 1.8 \times 10^{- 5}$ ]

Discussion

2975.	Which of following ligands not show synergic bonding?(1)CO(2)NH3(3)C2H4(4)PF3
Answer» Which of following ligands not show synergic bonding? (1)CO (2)NH3 (3)C2H4 (4)PF3

Discussion

2976.	Which one of the following pairs of elements has the second element with greater first ionization energy?
Answer» Which one of the following pairs of elements has the second element with greater first ionization energy?

Discussion

2977.	Which of the following is/are correct order of thermal stability?
Answer» Which of the following is/are correct order of thermal stability?

Discussion

2978.	7. A 5% solution of cane sugar is isolated with 0.877% of x.the molecular weight of substance is
Answer» 7. A 5% solution of cane sugar is isolated with 0.877% of x.the molecular weight of substance is

Discussion

2979.	Which of the following group IIA hydroxides is highly insoluble in water?
Answer» Which of the following group IIA hydroxides is highly insoluble in water?

Discussion

2980.	10. Carbon forms two oxides containing 42.9% and 27.3% carbons. Prove law of multiple proportions here.
Answer» 10. Carbon forms two oxides containing 42.9% and 27.3% carbons. Prove law of multiple proportions here.

Discussion

2981.	A bulb of 40 W is producing a light of wavelength 620 nm with 80% efficiency. Find the number of photons emitted by the bulb in 20 seconds. (1 eV=1.6×10−19 J, hc=12423 eV oA)
Answer» A bulb of $40 W$ is producing a light of wavelength $620 nm$ with $80 %$ efficiency. Find the number of photons emitted by the bulb in $20$ seconds. $(1 eV = 1.6 \times 10^{- 19} J, h c = 12423 eV o A)$

Discussion

2982.	Enlist the names and composition of the medicines present at your home.
Answer» Enlist the names and composition of the medicines present at your home.

Discussion

2983.	43. What is the acid catalysed reaction between cyclohexene and formaldehyde ?
Answer» 43. What is the acid catalysed reaction between cyclohexene and formaldehyde ?

Discussion

2984.	Amongthe isomeric alkanes of molecular formula C5H12,identify the one that on photochemical chlorination yields(i) A single monochloride.(ii) Three isomeric monochlorides.(iii) Four isomeric monochlorides.
Answer» Among the isomeric alkanes of molecular formula C₅H₁₂, identify the one that on photochemical chlorination yields (i) A single monochloride. (ii) Three isomeric monochlorides. (iii) Four isomeric monochlorides.

2984.

Amongthe isomeric alkanes of molecular formula C5H12,identify the one that on photochemical chlorination yields(i) A single monochloride.(ii) Three isomeric monochlorides.(iii) Four isomeric monochlorides.

Answer»

Among
the isomeric alkanes of molecular formula C₅H₁₂,
identify the one that on photochemical chlorination yields

(i)
A single monochloride.

(ii)
Three isomeric monochlorides.

(iii)
Four isomeric monochlorides.

Discussion

2985.	5 litres of a solution in m3is
Answer» 5 litres of a solution in $m^{3}$ is

Discussion

2986.	Which of the following molecules does not possess a permanent dipole moment?
Answer» Which of the following molecules does not possess a permanent dipole moment?

2986.

Which of the following molecules does not possess a permanent dipole moment?

Answer»

Which of the following molecules does not possess a permanent dipole moment?

Discussion

2987.	72 Show the mechanism of formation of alkene from R-OH by E2 elimination method
Answer» 72 Show the mechanism of formation of alkene from R-OH by E2 elimination method

Discussion

2988.	A sample of 16 g charcoal was brought into contact with CH4 gas contained in a vessel of 1 litre at 27 ∘ C. The pressure of gas was found to fall form 760 to 608 torr. The density of charcoal sample is 1.6 g/cm3. What is the volume of the CH4 gas adsorbed per gram of the adsorbent at 608 torr and 27 ∘ C.
Answer» A sample of $16 g$ charcoal was brought into contact with $C H_{4}$ gas contained in a vessel of $1$ litre at $27^{\circ} C$ . The pressure of gas was found to fall form $760$ to $608 torr$ . The density of charcoal sample is $1.6 {g/cm}^{3}$ . What is the volume of the $C H_{4}$ gas adsorbed per gram of the adsorbent at $608 torr$ and $27^{\circ} C$ .

Discussion

2989.	A wave has velocity U in medium P and velocity 2U in medium Q.if the wave is incident in medium P at an angle 30^o.then angle of refraction will be
Answer» A wave has velocity U in medium P and velocity 2U in medium Q.if the wave is incident in medium P at an angle 30^o.then angle of refraction will be

Discussion

2990.	The nuclear reactions accompanied with emission of neutron(s) are:
Answer» The nuclear reactions accompanied with emission of neutron(s) are:

Discussion

2991.	Doyou expect the carbon hydrides of the type (CnH2n+ 2) toact as ‘Lewis’ acid or base? Justify your answer.
Answer» Do you expect the carbon hydrides of the type (C_nH₂_n_{+ 2}) to act as ‘Lewis’ acid or base? Justify your answer.

Discussion

2992.	Calculate the half life period of a first order reaction of the constant of the reaction is 6.931010*10s_1
Answer» Calculate the half life period of a first order reaction of the constant of the reaction is 6.931010*10s_1

Discussion

2993.	Comparison of reactivities of aliphatic aldehyde and ketone.
Answer» Comparison of reactivities of aliphatic aldehyde and ketone.

Discussion

2994.	Q1) major product of reaction isCH3-CHOH-CHCH3-CH3——h3po4+heat—> ?
Answer» Q1) major product of reaction is CH3-CHOH-CHCH3-CH3——h3po4+heat—> ?

Discussion

2995.	An alkane with molecular formula C6H14 gives two monochloro alkanes on chlorination. What is the structure of alkane?
Answer» An alkane with molecular formula $C_{6} H_{14}$ gives two monochloro alkanes on chlorination. What is the structure of alkane?

Discussion

2996.	what will be the product formed when benzene is treated with two equivalents of acid anhydride in the presence of anhydrous alcl
Answer» what will be the product formed when benzene is treated with two equivalents of acid anhydride in the presence of anhydrous alcl

Discussion

2997.	Why chlorine gives a poor yield of alkyl chloride in borodine hunsdiecker reac^n?
Answer» Why chlorine gives a poor yield of alkyl chloride in borodine hunsdiecker reac^n?

Discussion

2998.	Why cannot vitamin C be stored in our body?
Answer» Why cannot vitamin C be stored in our body?

Discussion

2999.	How much amount of water can be decomposedthrough electrolysis by passing a current of 4 Ae1.93 x 10^° seconds?2.5 moles of water (2) 3 moles of water(4) 4 moles of water(3) 3.5 moles of water
Answer» How much amount of water can be decomposedthrough electrolysis by passing a current of 4 Ae1.93 x 10^° seconds?2.5 moles of water (2) 3 moles of water(4) 4 moles of water(3) 3.5 moles of water

Discussion

3000.	The pattern of successive layers of ccp arrangement in 3 dimensional ,can be designated as:
Answer» The pattern of successive layers of ccp arrangement in $3$ dimensional ,can be designated as:

Discussion

Explore topic-wise InterviewSolutions in .

the chrges +2μ c&+8μ c are placed at two verticesof equaliterial of side 1m the potential at the vertex of triangl

Solve 4•56 and 6ke uper bar

In the electrolytic refining of Copper (electrolyte is CuSO4 solution + dil H2SO4 ;Pure Cu cathode and Impure Cu anode), metallic impurities having lower oxidation potential than Cu are deposited as __ sludge.

1.5 g of an unknown substance was dissolved in 7.5 g of camphor and it was found that the melting point of camphor was depressed by 5.3K. If Kf is 39.75 K kg mol−1, find the molecular mass of the solute.

How many of the following reactions will produce 1-methylcyclohexanolas major product?

does CCL3CHO give cannizaro reaction

The total number of electron in 2.0g of D2O to that in 1.8 g of H2

Among the following complexes, the one which shows zero crystal field stabilization energy (CFSE) is:

How many space lattices (bravais lattices) are obtainable from the different crystal systems?

the surface energy possessed by a soap bubble,having surface tension equal to 0.04N/m of diameter 1cm,is

The total number of reducing sugars among the following is:

48. n-factor of KI when treated with alkaline KMnO4 solution is 1)2 2)3 3)5 4)6

graph between mean free path and number of density of molecules

Triaminobenzene is a [BHU 1996]

The amount of heat Q,used to heat up a substance depends on its mass m, its specific heat capacity (s) and the change in temperature ∆T of the substance. Using dimentional meathod, find the expression for s is (Given [s]=[L^2T^-2K^-1]) is?

MAD : JXA : : RUN : ?

Theelectron energy in hydrogen atom is given by En= (–2.18 × 10–18)/n2J. Calculate the energy required to remove an electron completelyfrom the n= 2 orbit. What is the longest wavelength of light in cm that can beused to cause this transition?

27. Orbital arc of earth of 1AU subtends an angle 10 seconds at a point .The distance of that point from earth is ? a.10 parsecs b. 10 parsec c.1 parsec d. 0.1parsec

Relate formula with linear density, diameter, density

The homolytic breaking of the Ca−Cb bond is easiest in:

How many mole are there in mg3(po4)2 if oxygen has 0.25mole

An example of a basic buffer is:

The OH− concentration in a mixture of 5.0mL of 0.0504 MNH4Cl and 2 mL of 0.0210MNH3 solution is x×10−6M. The value of x is .......(Nearest integer) [Given KW=1×10−14andKb=1.8×10−5]

Which of following ligands not show synergic bonding?(1)CO(2)NH3(3)C2H4(4)PF3

Which one of the following pairs of elements has the second element with greater first ionization energy?

Which of the following is/are correct order of thermal stability?

7. A 5% solution of cane sugar is isolated with 0.877% of x.the molecular weight of substance is

Which of the following group IIA hydroxides is highly insoluble in water?

10. Carbon forms two oxides containing 42.9% and 27.3% carbons. Prove law of multiple proportions here.

A bulb of 40 W is producing a light of wavelength 620 nm with 80% efficiency. Find the number of photons emitted by the bulb in 20 seconds. (1 eV=1.6×10−19 J, hc=12423 eV oA)

Enlist the names and composition of the medicines present at your home.

43. What is the acid catalysed reaction between cyclohexene and formaldehyde ?

Amongthe isomeric alkanes of molecular formula C5H12,identify the one that on photochemical chlorination yields(i) A single monochloride.(ii) Three isomeric monochlorides.(iii) Four isomeric monochlorides.

5 litres of a solution in m3is

Which of the following molecules does not possess a permanent dipole moment?

72 Show the mechanism of formation of alkene from R-OH by E2 elimination method

A wave has velocity U in medium P and velocity 2U in medium Q.if the wave is incident in medium P at an angle 30^o.then angle of refraction will be

The nuclear reactions accompanied with emission of neutron(s) are:

Doyou expect the carbon hydrides of the type (CnH2n+ 2) toact as ‘Lewis’ acid or base? Justify your answer.

Calculate the half life period of a first order reaction of the constant of the reaction is 6.93*10*10*10s_1

Comparison of reactivities of aliphatic aldehyde and ketone.

Q1) major product of reaction isCH3-CHOH-CHCH3-CH3——h3po4+heat—> ?

An alkane with molecular formula C6H14 gives two monochloro alkanes on chlorination. What is the structure of alkane?

what will be the product formed when benzene is treated with two equivalents of acid anhydride in the presence of anhydrous alcl

Why chlorine gives a poor yield of alkyl chloride in borodine hunsdiecker reac^n?

Why cannot vitamin C be stored in our body?

How much amount of water can be decomposedthrough electrolysis by passing a current of 4 Ae1.93 x 10^° seconds?2.5 moles of water (2) 3 moles of water(4) 4 moles of water(3) 3.5 moles of water

The pattern of successive layers of ccp arrangement in 3 dimensional ,can be designated as:

Calculate the half life period of a first order reaction of the constant of the reaction is 6.931010*10s_1