List of top Chemistry Questions

Heavy water is used as a

In Buna- $S$, the symbol $'Bu'$ stands for

Glucose when reduced with $HI$ and Red Phosphorus gives

Cycloalkane formed when $1, 4$ -dibromopehtane is heated with Sodium is

Conversion of benzene to acetophenone can be brought by

Intramolecular Hydrogen bonding is formed in

Excess of $PCl_5$ reacts with conc. $H_2SO_4$ giving

$ Ca{{(HC{{O}_{3}})}_{2}}(s) $ decomposes as $ Ca{{(HC{{O}_{3}})}_{2}}(s)\xrightarrow[{}]{{}}CaC{{O}_{3}}(s)+{{H}_{2}}O(g) $ $ +C{{O}_{2}}(g) $ Total pressure at equilibrium is found to be 0.12 bar. Thus, $ {{K}_{p}} $ is

The vapor pressure of

The following two compounds are:

In which case the $ \text{NO}_2 $ will attack at the meta position?

The following reaction is known as:
\[ \text{C}_6 \text{H}_5 \text{COOH} + \text{CO}_2 \xrightarrow{120-140^\circ C, 1.5 \, \text{atm}} \text{C}_6 \text{H}_4 \text{COONa} \xrightarrow{\text{NaOH}} \text{C}_6 \text{H}_5 \text{COOH} \]

Identify ‘C’ in the following reaction:

Which of the following is soluble in yellow ammonium sulphide?

In the reaction of KMnO$_4$ with an oxalate in acidic medium, MnO$_4^-$ is reduced to Mn$^{2+}$ and C$_2$O$_4^{2-}$ is oxidized to CO$_2$. Hence, 50 mL of 0.02 M KMnO$_4$ is equivalent to:

0.45 g of acid molecular weight 90 is neutralized by 20 mL of 0.5N caustic potash. The basicity of the acid is:

Alizarin is an example of:

2,4-Dichlorophenoxyacetic acid is used as:

The preparation of ethyl acetoacetate involves:

Which one of the following pairs is not correctly matched?

Which of the following processes is used for the preparation of acetone?

Which of the following will be most effective in the coagulation of $ \text{Fe(OH)}_3 $ (soil)?

When chlorine water is exposed to sunlight, $ \text{O}_2 $ is liberated. Hence,

An extremely hot copper wire reacts with steam to give:

Which of the following gives maximum value of enthalpy of physiolysis?