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

______ is an important metal to form an amalgam.

An alloy is a heterogenous mixture of metals.

A is a silvery-white metal. A combines with O₂ to form B at 800°C, the alloy of A is used in making the aircraft. Find A and B.

Apparent weight of a person is always equal to his actual weight

There is no gravity in the orbiting space station around the Earth. So the astronauts feel weightlessness.

Assertion: Energy-efficient bulbs like CFL must be used to save electric energy.

Reason: CFL bulbs are costlier than ordinary bulbs, hence using ordinary bulbs can save our money

Value based question

How would you dispose the following wastes? 

1. Domestic wastes like vegetable peels
2. Industrial wastes like metallic cans Can the disposal protect the environment? How?

The process of coating the surface of the metal with a thin layer of zinc is called ______

What is rust?

Give the equation for the formation of rust.

State two conditions necessary for rusting of iron.

What are the causes of ‘Myopia’?

Differentiate the eye defects: Myopia and Hypermetropia

How are e-wastes generated?

Higher Order Thinking Skill (HOT)

Why is the Government imposing ban on the use of polythene bags and plastics? Suggest alternatives. How is this ban likely to improve the environment?

Match the following:

What are the environmental effect caused by sewage?

What is the difference between pulmonary circulation and systemic circulation?

The eye defect ‘presbyopia’ can be corrected by

What are the steps will you adopt for better waste management?