📚NCERT Questions — NCERT10

Consider the unbalanced equation: Fe + H₂O → Fe₃O₄ + H₂. To balance the oxygen atoms, what coefficient should be placed in front of H₂O?

A reaction in which a single product is formed from two or more reactants is known as a:

In Activity 1.2, when lead nitrate solution is mixed with potassium iodide solution, what is the primary observation?

White silver chloride turns grey when exposed to sunlight. This phenomenon is due to the formation of:

When ferrous sulphate crystals are heated, what is the characteristic odour observed?

Which of the following is an example of a combination reaction?

Identify the substance that is reduced in the reaction: ZnO + C → Zn + CO

Identify the substance that is reduced in the reaction: 2PbO(s) + C(s) → 2Pb(s) + CO₂(g).

What is the colour of the coating formed on copper when it corrodes?

Which of the following is an example of a displacement reaction?