Question

Take a Break!
Write/Choose the correct answer.
1.
During laboratory preparation, carbon dioxide gas is evolved with brisk effervescence. (True/False)
3. When a moist blue litmus paper is introduced in a gas jar full of carbon dioxide, the litmus paper turns ________.}
times heavier than air.
2. Carbon dioxide is _______ times heavier than air .

4. Carbon dioxide is released when_________________
is used in the manufacture of bakery items.​

Answer 1

Answer:

1. TRUE
2. RED
3. 12 TIMES
4. YEAST.