List of top Chemistry Questions

A basic buffer solution is formed by selecting the pair

Solubility of $ AgCl $ will be minimum in

For the reaction, $ C(s)+CO_{2}(g)2CO(g) $ the partial pressure of $ CO_{2} $ and $ CO $ are $2.0$ and $4.0$ arm respectively then equilibrium $ K_{p} $ for the reaction will be

$ HCl $ is completely neutralised by $ NaOH $ solution. The resulting solution contains the following species

The dipole moment of HBr is $1.6 \times 10^{-30} $C-m and interatomic spacing is $1 \mathring{A}$. The per cent ionic character of HBr is

The coordinates of a moving particle at any time t are given by $ x=\alpha {{t}^{3}} $ and $ y={{t}^{3}}. $ The speed of the particle at time t is given by

The compounds formed at anode in the electrolysis of an aqueous solution of potassium acetate are

tert-butyl methyl ether on heating with anhydrous $HI$ in ether gives

Which of the following represents total kineticenergy of one mole of the gas

Rate of a reaction can be expressed by Arrhenius equation as : $K=Ae^{-E/RT}$ In this equation, E represents :

Percentage of free space in body centred cubic (bcc) unit cell is

Of the isomeric hexanes, the isomers that give the minimum and maximum number of monochloro derivatives are respectively

Morphine obtained from opium is

Total volume of atoms present in a face centred cubic unit cell of a metal is ($r$ is atomic radius)

The change in entropy for the fusion of $1$ mole of ice is [mp of ice = $273\, K$, molar enthalpy of fusion for ice $ = 6.0\,kJ\,mol^{-1} $ ]

Methanol and ethanol are miscible in water due to

Metals have

Methanol and ethanol are miscible in water due to

Mercury is a liquid metal because

Identify the reaction for which $\Delta H\ne \Delta E.$

Hydrolysis of $NCl _{3}$ gives $NH _{3}$ and $X$. Which of the following is $X$ ?

Which of the following compounds when heated with $CO$ at $150^{\circ} C$ and $500$ atm pressure in presence of $BF _{3}$ forms ethyl propionate ?

What is the correct order of occurrence ($\%$ by weight) in air of $Ne , Ar$ and $Kr$ ?

When acetaldehyde is heated with Fehling solution, a red precipitate is formed. Which of the following is that?

Which of the products is formed when acetone is reacted with barium hydroxide solution?