MEDIUM
7th West Bengal Board
IMPORTANT
Earn 100

How many types of salt do we use nowadays in food?

Important Questions on Role of Substances in Environment

MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 4 - Role of Substances in Environment>Exercise 32>Q (a)

Which of the following metal has the maximum types of compounds in sea?

Sodium, magnesium, potassium, calcium.

MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 4 - Role of Substances in Environment>Exercise 32>Q (b)

Analysis of sea salt shows the amount of _____ metal to be next to that of sodium.

MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 4 - Role of Substances in Environment>Exercise 32>Q (c)

Write the chemical formula of calcium chloride, which is a minor constituent compound present in the sea salt.

EASY
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 4 - Role of Substances in Environment>Exercise 32

What is the source of the salt that we use in our daily life?

MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 4 - Role of Substances in Environment>Exercise 33>Q (a)

Which constituent is mostly present in our body fluid?

MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 4 - Role of Substances in Environment>Exercise 33>Q (b)

What happens to sodium chloride, the main constituent of common salt present in our body fluid?

MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 4 - Role of Substances in Environment>Exercise 33>Q (c)

What happens to the other components of table salt present in the body?

MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 4 - Role of Substances in Environment>Exercise 33>Q (d)

If by any means you cut your lips or bite inside your cheek during eating, have you felt the taste of the blood?