Question

A. TICK ( ✔) THE ONLY CORRECT CHOICE AMONGST THE FOLLOWING :
1. The reaction between lead nitrate and potassium iodide is an example of:
(a) Double displacement reaction
(b) Single displacement reaction
(c) Decomposition reaction
(d) Neutralization reaction.

2. When crystals of copper carbonate, which are green in colour, are heated strongly then it forms a:
(a) Black compound of copper oxide
(b) White compound of copper oxide
(c) Green compound of copper oxide
(d) Reaction does not take place.

3. Heat is evolved during :
(a) Endothermic reaction
(b) Exothermic reaction
(c) Displacement reaction
(d) None of these.

4. When potassium reacts with water, then the gas evolved is :
(a) Hydrogen
(b) Oxygen
(c) Carbon dioxide
(d) All of these

5. Magnesium burns with a :
(a) Dazzling white flame
(b) Dazzling yellow flame
(C) Red flame
(d) Green flame.

ANSWER ME FAST ><​

Answer 1

Answer:

1) a

2) a

3) b

4) a

5) a

Explanation:

hope it will help you. if yes then please mark it as brainliest

Answer 2

Answer:

1.a

2.a

3.a

4.a

5.a

alll are correct