List of top Questions asked in Bihar Board XII

What are macromolecules?

What is slag?

Write the formula of Tetra-aminoaquachlorido-cobalt (III) chloride.

Write the names of the catalysts used in contact process and Ostwald process.

The general formula of carbonyl compound is:

At room temperature, formaldehyde is

The number of isomeric alcohols of molecular formula \( \text{C}_4\text{H}_{10}\text{O} \) is:

Methyl alcohol on oxidation with acidified \( \text{K}_2\text{Cr}_2\text{O}_7 \) gives:

Diethyl ether finds its use in medicine as:

Chloroform is:

How many kinds of Bravais lattice are possible in a crystal?

The percentage of free space in a body-centred cubic unit cell is

In electrolysis, oxidation takes place at:

The quantity of electricity required to liberate 32 g of oxygen is:

Rust is:

General group(s) for alcohols is/are:

The medicines which lower fever are called

The number of atoms present in body-centred cubic unit cell is

Which of the following is not a crystalline solid?

The product of addition polymerization is

Which one of the following is a thermosetting plastic?

Which of the following is a disaccharide?

Alkali salt of palmitic acid is known as

The temperature coefficient of most of the reactions lies between

Which of the following catalysts is used in Haber’s process for the manufacture of ammonia ?