List of top Chemistry Questions

The hydrolysis of sodium carbonate involves the reaction between

Carbolic acid is

Consider the following sets of quantum number:

	n	$\ell$	m	s
(a)	3	0	0	$+1 / 2$
(b)	2	2	1	$+1 / 2$
(c)	4	3	-2	$-1 / 2$
(d)	1	0	-1	$-1 / 2$
(e)	3	2	3	$+1 / 2$

Which of the following sets of quantum number is not possible:

Which one of the following is a correct statement?

Which one of the following shows maximum value of paramagnetic behaviour?

The enthalpy of hydrogenation of cyclohexene is $-119.5\, kJ\, mol ^{-1}$. If resonance energy of benzene is $-150.4\, kJ\, mol ^{-1}$, its enthalpy of hydrogenation would be

The colloidal system of a solid dispersed in liquid medium, is called

The presence of electric charge on colloidal particles is indicated by the property, called

What is the fuel of atomic pile ?

Pure water does not conduct electricity because it is

The radius of the first Bohr orbit of hydrogen atom is $ 0.529\overset{\text{o}}{\mathop{\text{A}}}\, $ . The radius of the third orbit of $ {{He}^{+}} $ will be

Two liquid drops have diameters of $1\, cm$ and $1.5\, cm$ The ratio of excess of pressures inside them is

The protective action of different lyophilic colloids is expressed in terms of

The oxidation state of chromium in chromium trioxide is

The reaction intermediate produced, by homolytic cleavage of a bond is called

The catalyst used in the manufacture of $H_{2}SO_{4}$ by contact process is

Nucleotide consists of

The osmotic pressure is expressed in the units of

The hybridisation of the ipso-carbon in chlorobenzene is

The specific conductance $ (\kappa ) $ of an electrolyte of $0.1\, N$ concentration is related to equivalent $ (\Lambda ) $ by the following formula

Monel metal is an alloy of

The number of covalent bonds in fluorine molecule is

The following is not an example of oxyacids of sulphur

The bleaching action of chlorine is due to the liberation of the following