CISCE Board - ICSE Class 9

ICSE Class 9 Chemistry Core question bank (Chemistry)

Practice 444 free CISCE Board - ICSE Class 9 Chemistry - ICSE Class 9 Chemistry Core questions with answers and step-by-step solutions.

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Q1.

Electrolysis of Copper: In 'The Language of Chemistry: Symbols, Valency, Chemical Formulae & Equations', during electro-refining of blister copper:

(A)
Pure copper deposits at cathode while impure anode dissolves ($Cu \to Cu^{2+} + 2e^-$) (The Language of Chemistry: Symbols, Valency, Chemical Formulae & Equations)
(B)
Cathode dissolves
(C)
Oxygen gas is evolved at cathode
(D)
None of these
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Q2.

Industrial Manufacture (Ammonia): In 'The Language of Chemistry: Symbols, Valency, Chemical Formulae & Equations', Haber's process conditions are:

(A)
$450-500^\circ\text{C}$, $200\text{ atm}$, finely divided Iron (Fe) catalyst and Molybdenum (Mo) promoter (The Language of Chemistry: Symbols, Valency, Chemical Formulae & Equations)
(B)
Room temperature and 1 atm
(C)
Platinum only at $1000^\circ\text{{C}}$
(D)
None of these
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