Question

Chemistry chapter 1

Question 1.

What happens when dilute hydrochloric acid is added to iron filling? Tick the correct answer

(a) Hydrogen gas and iron chloride are produced.

(b) Chlorine gas and iron hydroxide are produced

(c) No reaction takes place

(d) Iron salt and water are produced

Question 2.

Assertion: A lead nitrate on thermal decomposition gives lead oxide, brown coloured nitrogen

dioxide and oxygen gas.

Reason: Lead nitrate reacts with potassium iodide to form yellow ppt of lead iodide and the

reaction is double displacement as well as precipitation reaction.

(a) Both A and R are true and R is the correct explanation of A.

(b) Both A and R are true but R is not the correct explanation of A.

(c) A is true but R is false.

(d) A is false but R is true.

(e) Both A and R are false.

Question 3.

The reaction between lead nitrate and potassium iodide present in aqueous solutions is an

example of

(a) Decomposition Reaction

(b) Displacement Reaction

(c) Double Displacement Reaction

(d) Neutralisation Reaction​

Answer 1

Answer:

1- b, 2-a, 3-c. I think this type of answer s I know