(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

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Assertion :As temperature increases, heat of reaction also increases for exothermic as well as for endothermic reactions. Because Reason: ΔH varies with temperature as given by ΔH2(at T2)=ΔH1(atT1)+ΔCP(T2−T1).

Assertion :As temperature increases, heat of reaction also increases for exothermic as well as for endothermic reactions. Because Reason: $Δ$ H varies with temperature as given by ${Δ H}_{2} (a t T_{2}) = {Δ H}_{1} (a t T_{1}) + {Δ C}_{P} (T_{2} - T_{1})$ .