MHT CET PYQs for Chemical Reactions with Solutions: Practice MHT CET Previous Year Questions

1.

A current of $2$ amp when passed for $5$ hours through a molten salt deposits $22.2\mathrm{g}$ of metal of atomic mass $177$. The oxidation state of the metal in the metal salt is:

• (A) $+1$
  
• (B) $+2$
  
• (C) $+3$
  
• (D) $+4$
  

2.

The aldol condensation of $ CH_3 - CHO $ results is the formation of

• 

• 

• 

• $ CH_3 - CH_2 OH + CH_3 OH $

3.

In the following reaction sequence, $ \ce{CH3CHO ->[Cl_2][Ca(OH)_2] X ->[C_6H_5NH_2][Alc. KOH] Y}$ $Y$ is

• $ CH_3CH = NHC_6H_5 $
• $ C_6H_5NHCH_3 $
• $ C_6H_5NC $
• $ C_6H_5NCO $

4.

Which of the following gases is produced when zinc reacts with dilute hydrochloric acid?

• Oxygen
  
• Hydrogen
  
• Nitrogen
  
• Carbon dioxide
  

5.

The final product of the following reaction is/are

6.

Identify the name reaction for Swarts reaction and Witting reaction.

• Nucleophilic substitution and Electrophilic substitution
  
• Nucleophilic addition and Electrophilic addition
  
• Nucleophilic substitution and Nucleophilic addition
  
• Electrophilic substitution and Nucleophilic substitution
  

7.

What is the result of ozonolysis of propene?

• Formation of acetone and formaldehyde
  
• Formation of acetic acid
  
• Formation of methanol and ethanol
  
• Formation of two aldehydes or ketones
  

8.

The reaction in which $2$ molecules of chlorobenzene reacts with metallic sodium in presence of dry ether forming diphenyl is an example of,

• Wurtz-Fittig reaction
• Wurtz reaction
• Rosenmund reaction
• Balz-Schiemann reaction

9.

How many isomeric vicinal-dihalides are possible for the compound having molecular formula $ C_3H_6C_{12} $ ?

• $ 1 $
• $ 2 $
• $ 3 $
• $ 4 $

10.

The reagent used in the Etard reaction is:

• \( \text{Chromyl chloride (CrO}_2\text{Cl}_2) \)
  
• \( \text{Potassium dichromate (K}_2\text{Cr}_2\text{O}_7) \)
  
• \( \text{Chromic acid (H}_2\text{CrO}_4) \)
  
• \( \text{Sodium dichromate (Na}_2\text{Cr}_2\text{O}_7) \)