Sample question paper

Which of the following complex is tetrahedral in shape?

1. A[Ni(CN)₄]²⁻
2. B[Cu(NH₃)₄]²⁺
3. C[NiCl₄]²⁻
4. D[Co(en)₃]³⁺

An organic compound “X” on reaction with chloroform and alcoholic KOH gives foul smelling product. In which of the following case compound X would be produced:

1. AChloromethane is treated with AgCN.
2. BNitrobenzene is reduced.
3. CBenzene diazonium chloride is treated with Cu/KCN
4. DAniline reacts with Acetyl chloride.

Aavya carries out hydrolysis of acetyl chloride. The reaction is represented by the following equation: CH₃COCl + H₂O → CH₃COOH + HCl She carries out the reaction with

1. (i)
   equimolar amounts of acetyl chloride and water
2. (ii)
   excess of water. The rate law obeyed in the two cases will be:

The amino acid HOOC-CH₂-CH₂-CH (NH₂) COOH, can be synthesised within our body. Which of the following is true about this amino acid? HOOC-CH₂-CH₂-CH(NH₂) COOH is:

1. Aan acidic and non-essential amino acid.
2. Ba neutral and non- essential amino acid.
3. Can acidic and essential amino acid
4. Da neutral and essential amino acid

When (–)-2-bromohexane reacts with sodium hydroxide, (+)-hexan-2-ol is formed. Which one of the following observation would be correct?

1. AThe reaction follows Sₙ2 mechanism and is accompanied by inversion of configuration.
2. BThe reaction follows Sₙ1 mechanism and is accompanied by inversion of configuration.
3. CThe reaction follows Sₙ2 mechanism and is accompanied by retention of configuration.
4. DThe reaction follows Sₙ1 mechanism and is accompanied by retention of configuration.

If half-life of a first order reaction is 16 minutes, how much time does it take to complete 75% of the reaction?

1. A16 min
2. B32 min
3. C48 min
4. D64 min