SSLC (English Medium) कक्षा १० - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

Discuss the method of breeding for disease resistance.

Higher Order Thinking Skill (HOT)

Organic farming is better than Green Revolution. Give reasons

Tobacco consumption is known to stimulate secretion of adrenaline. The component causing this could be ______.

World 'No Tobacco Day' is observed on ______.

Nicotine is a narcotic drug.

A highly poisonous chemicals derived from tobacco is ______.

Mention the diseases caused by tobacco smoke.

Value based question

Men addicted to tobacco lead to oxygen deficiency in their body. What could be the possible reason?

Deforestation leads to ______ in rainfall.

Which of the following has the smallest mass?

Mass of 1 mole of Nitrogen atom is ______

Which of the following represents 1 amu?

The sum of the numbers of protons and neutrons of an atom is called its ______

Relative atomic mass is otherwise known as ______.

The average atomic mass of hydrogen is ______ amu.

Noble gases are Diatomic.

The gram atomic mass of an element has no unit.

Answer the following question using the data given below:

• Assertion: The Relative Atomic mass of aluminium is 27
• Reason: An atom of aluminium is 27 times heavier than 1/12th of the mass of the C – 12 atom.

Write the different types of isotopes of oxygen and their percentage abundance.

Calculate the % of each element in calcium carbonate. (Atomic mass: C-12, O-16, Ca -40)