List of top Questions asked in Haryana PMT- 1999

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

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

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

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