List of top Chemistry Questions

Role of enzyme in reactions is to/as

Richest source of vitamins C is:

Portland cement contains the following amount of $CaO$

Maximum frequency of emission is obtained for the transition

Ammonia and sodium hypochlorite reacts to produce :

Physical adsorption is inversely proportional to :

Bauxite is concentrated by :

The alcohol manufactured from water gas is :

$ K_4[Fe(CN)_6]$ is a

One mole of an ideal gas is allowed to expand reversibly and adiabatically from a temperature of $27^{\circ} C$ The work done is $3 \,kJ$. The final temperature of the gas is equal to $\left[C_{v}=20\, K J^{-1}\right]:$

IUPAC name of $Na_3 [Co (NO_2 )_6 ]$ is

The strongest reducing agent of the alkali metal is:

Specific conductance of $0.1 \,N \,KCl$ solution at $23^{\circ} C$ is $0.012 \,ohm ^{-1} \,cm ^{-1}$. Resistance of cell containing the solution at same temperature was found to be $55 \,ohm$. The cell constant is:

In which of the following the angle between the two covalent bonds is maximum?

Which of the following is paramagnetic ?

In which of the following groups, when He is placed, its all the properties are satisfied ?

Gasoline is a mixture of hydrocarbons containing

Baking soda or baking powder is

$H _{3} PO _{3}$ is dibasic acid. Two hydrogen atoms are directly attached to the P.

Transition metals mostly are

Zinc and mercury do not show variable valency like d-block elements because

Elements which generally exhibit multiple oxidation states and whose ions are usually coloured are

The halogen that is most easily reduced is

Which of the following is not a sex hormone ?

In polysaccharides, the linkage connecting monosaccharide is called