Page 1 - H. A.-1 (Obj. & Sub..)

SAI International School

Subject - Chemistry
Ch-Chemical Reactions and Equations
Topic-Types of Chemical Reactions

(Displacement & Double displacement Reactions)

Home assignment

Objective-

MCQs-
Q.1 What happens when copper rod is dipped in iron sulphate solution?
(a) Copper displaces iron
(b) Blue colour of copper sulphate solution is obtained
(c) No reaction takes place
(d)Reaction is exothermic

Q.2 Which of the following reaction is characterised by the yellow colour
of product?
(a) Zn (s) +H2SO4 → ZnSO4+H2
(b) Na2CO3+H2SO4 → Na2SO4+H2O +CO2
(c) Pb(NO3)2 → 2PbO (s) + 4NO2(g) +O2(g)
(d) CaCO3 → CaO + CO2

Q.3 Zn +H2SO4(dil) → ZnSO4+H2
Above reaction is -
(a) decomposition reaction
(b) single displacement reaction
(c) combination reaction
(d) synthesis reaction

For Q.4&5 Assertion& Reason question follow the following directions.

DIRECTION:Each of these questions contains an 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.

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