NEET (UG) entrance exam Question Bank Solutions

Noble gases are named because of their inertness towards reactivity. Identify an incorrect statement about them.

Which one of the following polymers are prepared by addition polymerisation?

The correct option for the value of vapour pressure of a solution at 45°C with benzene to octane in a molar ratio of 3 : 2 is

[At 45°C vapour pressure of benzene is 280 mm Hg and that of octane is 420 mm Hg. Assume Ideal gas]

The right option for the number of tetrahedral and octahedral voids in hexagonal primitive unit cell is ______.

Which one of the following polymers is prepared by addition polymerisation? 

In aryl halide, halogen atom is attached ______.

On reacting with electropositive metals like Na, alcohols give sodium alkoxides and liberate H₂. In this reaction, alcohols behave as ______.

Which of the following ether has the highest boiling point?

The boiling point of H₂O is more than that of NOF because of ______.

Malt sugar is obtained by the partial hydrolysis of starch by the enzyme ______.

In acidic medium, reaction, \[\ce{MNO^-_4 → Mn^2+}\] an example of ____________.   

Which of the following is NOT a lyophobic sol?

For a reversible reaction forward and backward rate constant respectively are 2.5 × 10^–4 and 7.5 × 10^–4. What is the value of equilibrium constant?

A substance absorbs \[\ce{CO2}\] and violently reacts with water. That substance is ______. 

A solution containing components A and B follows Raoult's law ______.

In a first order reaction the concentration of reactants decreases from 400mol L^-1 to 25 mol L^-1 in 200 seconds. The rate constant for the reaction is ______.

Biodegradable waste is generally produced in ______. 

When animal charcoal is added to impure sugar solution ______

Silica is a/an _______.

In which one of the following, the number of protons is greater than the number of neutrons but number of protons is less than the number of electrons?