NEET (UG) entrance exam Question Bank Solutions

Which of the following statement is CORRECT regarding the drawbacks of raw rubber?

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

The edge length of fee type unit cell of copper having an atomic radius of 127.6 pm is equal to ______

`"E"_"cell"^0` for the reaction, \[\ce{2H2O -> H3O+ + OH-}\] at 25°C is - 0.8277 V. The equilibrium constant for the reaction is ______.

The total number of π-bond electrons in the following structure is ______.  

Under what conditions a biomolecular reaction may be kinetically of first order?

Be ²⁺ is isoelectronic with which of the following ions:

In Hall's process, the main reagent is mixed with ______.

Which of the following compound is a peroxide?

The enthalpy of formation of CH_4(g), HP_(cl) and CO_2(g) are respectively – 74.8 kJ mol^–1, – 285.5 kJ mol^–1 and – 393.5 kJ mol^–1. Then, the standard enthalpy of combustion of CH_4(g) is:

For the reaction,

\[\ce{N2 + O2(g) ⇌ 2NO(g)}\]

the equilibrium constant is K₁. The equilibrium constant is K₂ for the reaction

\[\ce{2NO(g) + O2(g) ⇌ 2NO2(g)}\]

What is "K" for the reaction:

\[\ce{NO2(g) ⇌ 1/2 N2(g) + O2(g)}\]?

Temporary hardness of water can be removed by

Paper chromatography is ______.

Which of the following energy level diagram for [FeF₆]^3- is correct on the basis of crystal field theory?

Polysaccharides have which of the following linkages?

In vulcanization of rubber:

Of the following pairs of ions which one is not an iso-electronic pair?

Ethylene diamine tetraacetate (EDTA) ion is ______.

Of the following pairs of ions which one is not an iso-electronic pair?

Chlorobenzene is ______ towards nucleophilic substitution reactions.