Question

1)The gas produced when metal react with dilute acid
A) Oxygen B) Nitrogen C)Hydrogen D) Helium

2)A solution turns red litmus blue its PH is likely to be
A) 0 B) 4 C) 7D) 10

3)In Flemings Left hand rule Thumb indicate
A) Motion B) Field D) Current D) Emf​

Answer 1

Answer:

1. Whenever a metal is react with dil.Acid H2 gas is evolve.

E.g, 2Na + 2HCl ------>2NaCl + H2

2. It is likely to be 10.

I.e, D.

3. Thumb indicates the Direction of Motion.

option A.

Hope it would help u❣