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6. Arrange the metals according to their reactivity(from most Hots 1
least active);Mg, Cu, Fe, Al
a) Mg>Al> Fe>Cu
b) Mg>Cu>AL>Fe
c) Cu>Fe>Al>Mg
d) Fe>Al>Mg>Cu
Subjective
Q. Questions Skill M1arks
No.
1. Mention the colour of the following solution. R 1
a) Iron sulphate
b) Copper Sulphate
2. What are products of the decomposition reaction of calcium U 1
carbonate.
3. .DIRECTION: Each of these questions contains an `A 1
Assertion followed by Reason. Read them
carefully and answer the question on the basis
of following options. You have to select the one that
best describes the two statements.
a) If both Assertion and Reason are correct and
Reason is the correct explanation of Assertion.
b) If both Assertion and Reason are correct, but
Reason is not the correct explanation of
Assertion.
c) If Assertion is correct but Reason is incorrect.
d) If Assertion is incorrect but Reason is correct.
e) If Assertion & Reason both are incorrect.
Assertion(A.) Water is decomposed to produce oxygen and
nitrogen.
Reason(R): Decomposition reaction leads to form a single
product.
4. a) Write the difference between combination and U&R 2+1
decomposition reaction.
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