Practice paper · Jabalpur region

Which of the following aldehyde does not undergo Cannizzaro’s reaction ?

1. AC₆H₅CHO
2. B(CH₃)₃ C CHO
3. CHCHO
4. D(CH₃)₂CH CHO

Which of the following is a false statement ?

1. AOrder of reaction may be fractional.
2. BHalf life of a first order reaction is directly proportional to the initial concentration of reactant.
3. CRate of Zero order reaction is independent to the concentration of reactant.
4. DThe unit of rate constant of a zero order reaction is mol lt⁻¹ sec.

The role of a catalyst is to change :

1. Aequilibrium contant
2. Benthalpy of reaction
3. CGibbs energy of reaction
4. Dactivation energy of reaction

Ethanal can be converted to ethanol by :

1. Atreatment with LiAlH₄
2. Btreatment with PCC
3. Ctreatment with KMnO₄
4. Dheating with Cu at 573 K

Arrange the following compounds in increasing order of pkb : CH₃NH₂, (CH₃)₂ NH, NH₃, C₆H₅NH₂

1. AC₆H₅NH₂< NH₃< (CH₃)₂NH < CH₃NH₂
2. B(CH₃)₂NH < CH₃NH₂ < NH₃< C₆H₅NH₂
3. CC₆H₅NH₂ < NH₃ < CH₃NH₂ < (CH₃)₂NH
4. D(CH₃)₂NH < CH₃NH₂ < C₆H₅NH₂ < NH₃

The conversion of an alkyl halide into an alkene by ethanolic KOH is classified as

1. Aa dehydration reaction
2. Ba nucleophilic substitution reaction
3. Can addition reaction
4. Da dehydrohalogenation reaction

Value of Henry’s constant KH ____________.

1. (i)
   increases with increase in temperature.
2. (ii)
   decreases with increase in temperature.
3. (iii)
   greater for gases with higher solubility.
4. (iv)
   greater for gases with lower solubility. Choose the correct option

Reagent than can not used to distinguish between Ethanal and Ethanoic acid.

1. ASodium bicarbonate
2. BNeutral FeCl₃
3. CNaOH + I₂
4. DTollens reagent