A C Sehgal Solutions for Exercise 3: EXERCISES

Author:A C Sehgal

A C Sehgal Science Solutions for Exercise - A C Sehgal Solutions for Exercise 3: EXERCISES

Attempt the practice questions from Exercise 3: EXERCISES with hints and solutions to strengthen your understanding. Living Science 8 solutions are prepared by Experienced Embibe Experts.

Questions from A C Sehgal Solutions for Exercise 3: EXERCISES with Hints & Solutions

HARD
8th CBSE
IMPORTANT

Describe briefly the different methods used for preventing corrosion of metals.

EASY
8th CBSE
IMPORTANT

Silver is the best conduct of electricity. Can you say why electric wires are not made up of silver?

EASY
8th CBSE
IMPORTANT

Why are bells made from metals and not from wood?

EASY
8th CBSE
IMPORTANT

Suppose copper was high up in the reactivity series. Would it still have been such a useful metal? Give the reason.

EASY
8th CBSE
IMPORTANT

It has been noticed that silverware becomes black faster today than it did fifty years ago. What can be the reason for this?

EASY
8th CBSE
IMPORTANT

Aluminium is above iron in the reactivity series. However, its reaction with oxygen and water seems to indicate that it is less reactive than iron. Explain.

EASY
8th CBSE
IMPORTANT

If you are an engineer constructing a multi-storey building, which alloy would you be extensively using and why?

EASY
8th CBSE
IMPORTANT

A doctor diagnosed a patient with iron deficiency, and gave him tablets containing iron. But the tablets were not hard and did not look like iron at all. What do you think the tablets contained?