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
Answers
Answered by
1
Answer:
1- b, 2-a, 3-c. I think this type of answer s I know
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