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1009 available questions

Chemistry · Question 101

By increasing which of the following factor polarizability increases?

  1. Atomic radius
  2. Ionization energy
  3. Ionic radius
  4. Hydration energy
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Correct answer: A

Atomic radius

Chemistry · Question 102

At constant volumen the heat supplied is equal to

  1. Work done
  2. Internal energy change
  3. enthalpy
  4. entropy
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Correct answer: B

Internal energy change

Chemistry · Question 103

Which one of them belongs to tetragonal system.

  1. Bi
  2. Sn
  3. Fe
  4. Zn
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Correct answer: B

Sn

Chemistry · Question 104

Solubility of carboxylic acids _________________?

  1. Decreases with increase of volume
  2. Decreases with increase in molecular mass
  3. Increase with increase in molecular mass
  4. None of these
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Correct answer: B

Decreases with increase in molecular mass

Chemistry · Question 105

Which of the following elements has highest ionization energy?

  1. O
  2. C
  3. N
  4. Be
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Correct answer: C

N

Chemistry · Question 106

Which of the following compounds has lowest boiling point?

  1. Water
  2. Ethanol
  3. Hydrogen sulphide
  4. Acetic acid
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Correct answer: C

Hydrogen sulphide

Chemistry · Question 107

The value of solubility products depends only on F

  1. Temperature
  2. Solvent
  3. Pressure
  4. Catalyst
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Correct answer: A

Temperature

Chemistry · Question 108

Photon of which of the following series will have largest wave length?

  1. Bracket series
  2. Plund series
  3. Balmer series
  4. Paschen series
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Correct answer: B

Plund series

Chemistry · Question 109

Which of the following is most soluble in water?

  1. Ethanoic acid
  2. Pentanoic acid
  3. Hexanoic acid
  4. Butanoic acid
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Correct answer: A

Ethanoic acid

Chemistry · Question 110

The thermal decomposition of nitrogen pentaoxide in gaseous state follows, which one of the following order of reaction? N2Osig) + ZNOqy + Ong)

  1. First order
  2. Second order
  3. Fractional order
  4. Third order
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Correct answer: A

First order