Acids, Bases and Salts — Science STD 10 — Question

By what name is the physical quantity coulomb/ second called?

Construct a food chain comprising the following:
Snakes, Hawk, Rats, Plants.

Name an acid which is present in baking powder.

Why does-the colour of copper sulphate solution change when an iron nail is kept immersed in it?

Name the organ which produces female sex cells.

Name the functional group which always occurs in the middle of a carbon chain.

Which of the following metals react with cold water?
Sodium, iron, copper, potassium.

Identify the class of given animals and write one characteristic of each animal:
(1) Kangaroq (2) Penguin (3) Crocodile (4) Frog (5) Sea-horse.

Where is the male gamete formed:

1. In humans?
2. In flowering plants?

Name the asexual method of reproduction in yeast.