List of top Chemistry Questions

Atoms with low ionization potential and large atomic size:
An orbital can hold only two electrons. This can be explained:
Double bond is present in:
The compound used in the preparation of borax is:
What is the molecular formula of alkane?
Polar covalent bond is present in:
Shape of H\(_2\)O molecule is:
Which of the following is a mild base?
The predicted properties of eka-boron by Mendeleeff were almost same as of \_\_\_\_\_ which was discovered later.
The compounds formed when a hydrogen atom is replaced from NH₃ by an alkyl group is:
Which one of the following molecules is an example of sp² hybridisation?
Which one of the following has smaller atomic radii?
The chemical bond formed by the overlapping of orbitals on the internuclear axis is:
The number of elements present in the fifth period of the modern periodic table:
Ionization energy generally:
Identify the sulphide ore among the following:
IUPAC name of CH\(_3\)CHO is:
The product or products formed when sodium carbonate reacts with HCl is/are:
The below reaction is an example of: \[ \text{CH}_3\text{C} \equiv \text{C}\text{CH}_3 \xrightarrow{\text{Ni catalyst, H}_2} \text{CH}_3\text{CH}_2\text{CH}_2\text{CH}_3 \quad (\text{n-Butane}) \]
Fats are esters of higher fatty acids and:
Which of the following is the hardest material?
The hybridisation of carbon in graphite is:
The law of octaves was proposed by:
Which of the following methods is used for the concentration of ore?
The purification method used for blister copper is: