📚NCERT Questions — CBSE10

Which of the following compounds is an example of an unsaturated hydrocarbon?

Which type of blood vessels have valves to ensure blood flows only in one direction, as the blood pressure is low?

The endocrine system is a system of control and coordination that uses:

Which gastric gland secretion protects the inner lining of the stomach from the action of hydrochloric acid?

Consider the electron-dot structure of oxygen. How many electrons does it need to complete its octet?

What is the common name for ethanoic acid?

Which of the following is a waste product generated during photosynthesis in plants?

Nervous tissue is specialized for conducting information via:

Which method involves coating steel and iron with a thin layer of zinc to prevent rusting?

What type of hydrocarbons undergo addition reactions with hydrogen in the presence of catalysts?