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The Empirical formula of an organic compound is CHCl2. If its relative molecular mass is 168, what is its molecular formula? [At.…
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Define / State: (a) Electronegativity. (b) Gay-Lussac’s law of combining volumes.
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Study the following observations and name the anions present in each of the reactions. (a) When a crystalline solid ‘P’ is warmed…
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Give a balanced chemical equation for the following conversions with conditions: (a) Ethene from ethanol (b) Ethyne from calcium carbide (c) Monochloromethane…
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Draw the electron dot structure for the following: (a) Ammonium ion (b) A molecule of nitrogen [At. No.: N=7, H=1]
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Write one use of the following alloys: (a) Bronze (b) Fuse metal
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The following questions are pertaining to the laboratory preparation of Ammonia gas from Magnesium nitride: (a) Write a balanced chemical equation for…
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Ethane burns in oxygen according to the chemical equation: 2C2H6 + 7O2 → 4CO2 + 6H2O If 80 ml of ethane is…
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Identify the alloy in each case from the given composition: (a) Aluminium, magnesium, manganese, copper (b) Iron, nickel, chromium, carbon
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State a relevant reason for the following: [2] (a) Hydrogen chloride gas cannot be dried over quick lime. (b) Ammonia gas is…
