MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions

A substance C₄H₁₀O yields on oxidation a compound, C₄H₈O which gives an oxime and a positive iodoform test. The original substance on treatment with a conc. H₂SO₄ gives C₄H₈. The structure of the compound is ______.

Which of the following polymers do not involve cross linkages?

The catalyst used for the polymerisation of olefins is ______.

Which of the following polymer is used for manufacturing of buckets, dustbins, pipes, etc?

In the above reaction, product (B) is:

Calculate ΔU if 2 kJ heat is released and 10 kJ of work is done on the system.

Which among the following polymers has high tensile strength and is used to obtain tyre cords?

Identify the monomer used to prepare neoprene.

Which of the following reaction does not involve either oxidation or reduction?

Which symbol replaces the unit of atomic mass, amu?

Which of the following is most reactive towards the addition reaction of hydrogen cyanide to form the corresponding cyanohydrin?

What is the number of different products formed when mixture of ethanal and propanal reacts with aq. NaOH after warming?

Which of the following compounds does not undergo a haloform reaction?

Calculate the work done during the combustion of 0.138 kg of ethanol, C₂H₅OH(l) at 300 K.
Given: R = 8.314 Jk⁻¹ mol⁻¹, molar mass of ethanol = 46 g mol⁻¹.

Which of the following is a polymer of enzyme?

Which of the following is not correctly matched?

0.05 F electricity is passed through CuSO₄ solution. Calculate the mass of Cu produced at cathode? (molar  mass of Cu = 63.5 g mol^-1)

Identify the reaction in which carbonyl group of aldehydes and ketones is reduced to methylene group on treatment with zinc-amalgam and cone. HCI.

Aldehydes are readily oxidised to yield carboxylic acids but ketones are inert to oxidation. Which is the most likely explanation regarding this difference in reactivity?

Which of the foolowing polymer is used in the manufacture of insulators.