List of top Chemistry Questions asked in JIPMER

Which of the following has smallest size?

The e.m.f. of a cell, whose half-cells are given below, is: $ M{{g}^{2+}}+2{{e}^{-}}\xrightarrow{{}}Mg(s); $ $ E{}^\circ =-\,2.37\,\,V $ $ C{{u}^{2+}}+2{{e}^{-}}\xrightarrow{{}}Cu(s); $ $ E{}^\circ =+\,0.34\,\,V $

Vapour density of a metal chloride is 47.5. If the valency of metal is 2, the metal is:

Which salt shows maximum osmotic pressure in its 1 M solution?

The rate of a first order reaction is $ 0.693\times {{10}^{-2}}\,mol\,{{L}^{-1}}\,{{\min }^{-1}} $ and the initial concentration of the reactants is 1 M, $ {{t}_{1/2}} $ is equal to:

A solution of sodium borate has a pH of approximately:

Red lead is an example of:

The equivalent weight of aluminium in $ A{{l}_{2}}{{O}_{3}} $ will be:

Minimum excitation potential of Bohrs first orbit in hydrogen atom is:

Lithopone is:

Which carbide gives methane on hydrolysis?

When acetone reacts with bleaching powder, the compound formed is:

What is obtained by the dry distillation of calcium formate?

The oxidation of toluene to benzaldehyde, in presence of chromyi chloride, is called:

The IUPAC name of gammexane is:

$ HCl $ behaves as......in the reaction: $ HCl+HF\xrightarrow{{}}H_{2}^{+}Cl+{{F}^{-}} $

Diborane reacts with water to form:

Conjugated double bonds are present of these in:

An ore of potassium is:

When a catalyst is added to a system, the:

A and B are two identical vessels. A contains 15 g of ethane at 298 K and 1 atm. The vessel B contains 75 g gas $ {{X}_{2}} $ at the same temperature and pressure. The vapour density of $ {{X}_{2}} $ is:

Which property is different for neutral atoms of the two isotopes of the same element?

What is the oxidation state of Cr in $ Cr{{O}_{5}} $ ?

A mixture of benzene and aniline can be separated by:

The activation energy for a reaction is 9.0 kcal/mol. The increase in the rate constant when its temperature is increased from 298 K to 308 K is: