List of top Chemistry Questions

The long form of Periodic Table is based on

The hybrid states of carbon in diamond, graphite and acetylene are respectively

Noble gases do not react with other elements because

$MgCl_2.6H_2O$ when heated gives

Physical adsorption of molecules on surface requires activation energy. Because the bonds of the adsorbed molecules are broken.

According to Dalton?? atom theory, the smallest particle in which matter can exist, is called

Which of the following is known as fusion mixture?

Which of the following compound does not react with metallic sodium ?

When $(NH_4)_2Cr_2O_7 $ is heated, the gas evolved is

The number of electrons in $\left[{ }_{19} K ^{40}\right]^{-1}$ is

The number of electrons and neutrons of an element is $18$ and $20$ respectively. Its mass number is

Which of the following glasses is the most heat resistant?

The formation of 2-butene as a major product by dehydration of 2-butanol is in accordance with

Which of the following is an alum?

In Wolff-Kishner reduction, the carbonyl group of aldehydes and ketones is converted into

Which of the following is a transition elements ?

The structure of white phosphorus is

In the following four elements,the ionization potential of which one is the highest ?

The last member of the family of inert gases is

Which of the following statements(s) is (are) correct?

The metal always found in free state is

Synthetic human hairwigs are made from a copolymer of vinyl chloride and acrylonitrile, and is called

The product of addition polymerization reaction is

Which electronic configuration of an element has abnormally high difference between second and third ionisation energy?

Among the following which compound will show the highest lattice energy?