SSLC (English Medium) इयत्ता ९ - Tamil Nadu Board of Secondary Education Question Bank Solutions

Why are Noble gases inert in nature?

Zn + 2 HCl → ZnCl₂ +_____↑

Since metal carbonate and metal bicarbonate are basic, they react with acids to give salt and water with the liberation of ______.

Classify the various types of Acids based on their sources.

Two acids ‘A’ and ‘B’ are given. Acid A gives one hydrogen ion per molecule of the acid in solution. Acid B gives two hydrogen ions per molecule of the acid in solution.

1. Find out acid A and acid B.
2. Which acid is called the King of Chemicals?

Compounds with same molecular formula and different structural formula are known as ______.

Match the following.

Higher Order Thinking Skill.

Why do carbon exist mostly in combined state?

One Nanometre is ______.

The age of a dead animal can be determined by using an isotope of ______.

The groups responsible for the colour of an organic compound is called ______.

Match the following.

The human body functions normally at a temperature of about _____

Match the following.

Why do we sweat?

Assertion: In both the sexes gonads perform dual function.

Reason: Gonads are also called primary sex organs.

Higher Order Thinking Skill

Why your doctor advises you to drink plenty of water?

Higher Order Thinking Skill

Can you guess why there are sweat glands on the palm of our hands and the soles of our feet?

Match the following.

The slides are grouped together in a sequence to form _______.