Subject Experts Solutions for Chapter: Chemistry in Daily Life, Exercise 1: PRACTICE QUESTIONS (CLASSROOM WING)

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Subject Experts Chemistry Solutions for Exercise - Subject Experts Solutions for Chapter: Chemistry in Daily Life, Exercise 1: PRACTICE QUESTIONS (CLASSROOM WING)

Attempt the free practice questions on Chapter 6: Chemistry in Daily Life, Exercise 1: PRACTICE QUESTIONS (CLASSROOM WING) with hints and solutions to strengthen your understanding. Pearson IIT Foundation Chemistry solutions are prepared by Experienced Embibe Experts.

Questions from Subject Experts Solutions for Chapter: Chemistry in Daily Life, Exercise 1: PRACTICE QUESTIONS (CLASSROOM WING) with Hints & Solutions

EASY
7th CBSE
IMPORTANT

Match the following:

Column A Column B
A. Cleaning the surface of the metal a. CaSO4.12H2O
B. Used as an insecticide b. ZnCO3
C. Construction of Taj Mahal c. HCl
D. Casting Toys, Statues etc. d. CuSO4.5H2O
  e. CaCO3

EASY
7th CBSE
IMPORTANT

Which of the following applications of copper require refining of copper instead of alloying?

EASY
7th CBSE
IMPORTANT

Which of the following fertilisers cannot replenish nitrogen?

EASY
7th CBSE
IMPORTANT

Arrange the following steps in a sequence for the manufacture of borosilicate glass:

(1) Addition of ingredients like red lead, aluminium oxide, manganese oxide, chromium oxide, etc.

(2) Addition of broken pieces of glass.

(3) Mixing up of sand, limestone, sodium carbonate, aluminium oxide and borax in required proportions.

(4) Melting mixture in a glass tank furnace or pot furnace.

(5) Annealing process.

(6) Blowing of glass.

EASY
7th CBSE
IMPORTANT

Graphite is used in the manufacture of crucibles where a small quantity of metals can be melted. It is also used as electrodes. Which of the following properties of graphite is not exploited in these two given applications?

EASY
7th CBSE
IMPORTANT

Which of the following is the most suitable for the construction of a pillar?

EASY
7th CBSE
IMPORTANT

Assertion (A): Gold is used for making jewellery coins.

Reason (R): It is relatively a hard metal.

EASY
7th CBSE
IMPORTANT

Assertion (A): Fuse wire is made up of an alloy constituted of lead and tin in 1:1 ratio by mass.

Reason (R): Both lead and tin have comparatively lower melting points than other metals.