List of top Chemistry Questions

Ammonium dichromate is used in some fireworks. The green coloured powder blown in the air is

Which of the following is not a periodic property?

Which of the following is not a water soluble vitamin?

What is the product when, phenol reacts with diazomethane?

What is the normality of 0.30 M $ {{H}_{3}}P{{O}_{4}} $ (a tribasic acid) in the following reaction? $ {{H}_{3}}P{{O}_{4}}+2O{{H}^{-}}\xrightarrow{{}}HPO_{4}^{--}+2{{H}_{2}}O $

The Tyndall effect, associated with colloidal particle is due to:

The iron-carbonate ore is:

The inversion temperature for a van der Waals gas is given by:

The compound with the smell of peppermint, is:

The chemical name for grain alcohol is:

The alloy of copper, which does not contain zinc is:

Ratio of radius of atom to that of nucleus is of the order of:

Heavy water is obtained:

Conversion of n-hexane to benzene, in the presence of chromic acid, is called:

The equivalent weight of Mohrs salt is:

The value of $ I{{E}_{1}},\,I{{E}_{2}},\,I{{E}_{3}},\,I{{E}_{4}} $ and $ I{{E}_{5}} $ of an element are 7.1, 14.3, 34.5, 46.8 and 162.2 eV respectively. The element is likely to be:

When the same amount of Al is treated with an excess of $ HCl $ and $ NaOH $ , the volumes of hydrogen evolved are in the ratio of:

To what radioactive family does $ P{{b}^{207}} $ belongs?

Which of the following has the smallest size?

Which of the following is not true? An element, with high electronegativity is, generally:

The element with the highest first ionization potential is:

The superior type of laboratory apparatus are made of:

Ortho and para hydrogen:

The cyanide ion $CN^-$ and $N_2$ are isoelectronic, but in contrast to $CN^-$ , $N_2$ is chemically inert because of

The element with the atomic number 118, will be