List of top Chemistry Questions asked in Haryana PMT

Guayule rubber comes from :

The powerful explosive $RDX$ is formed during the nitration of:

Which of the following is the correct relation of the first law of thermodynamics?

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?

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

Which of the following is paramagnetic ?

An element with atomic number $26$ will be found in group :

The covalent compound $ HCl $ has the ionic character as:

$ {{E}_{n}}=-\frac{313.6}{{{n}^{2}}} $ . If the value of $ {{E}_{n}}=-34.84 $ to which of the following values does $'n'$ correspond?

The constant $'a'$ in van der Wall's equation is maximum in :

The screening effect of $'d'$ electrons is:

The pressure of atmosphere air is $ 720\text{ }mm $ . The pressure of water vapour in the air is:

Pure propanone can be prepared by ozonolysis of:

Principle/which gives a way to fill the electrons in the available energy levels is:

Which compound is obtained when formaldehyde is treated with ammonia?

An example of anthraquinone dye is