Brass is an alloy of:

Question: Brass is an alloy of: (a) Nickel and Copper (b) Copper and Silver (c) Nickel and Zinc (d) Zinc and Copper Answer: (d) Zinc and Copper

Bleaching powder is made from:

Question: Bleaching powder is made from: (a) Sulphur dioxide and gypsum (b) Chlorine and Charcoal (c) Soda ash and lime (d) Lime and Chlorine Answer: (d) Lime and Chlorine

Washing soda is the common name of:

Question: Washing soda is the common name of: (a) Calcium Carbonate (b) Calcium Bi-Carbonate (c) Sodium Carbonate (d) Sodium Bi-Carbonate Answer: (c) Sodium Carbonate

Stainless steel is an alloy of:

Question: Stainless steel is an alloy of: (a) Iron, Carbon and Nickel (b) Iron and Manganese (c) Iron, Chromium and Zinc (d) Iron, Chromium and Nickel Answer: (d) Iron, Chromium

Tetraethyl lead is used as:

Question: Tetraethyl lead is used as: (a) Mosquito repellent (b) Pain Killer (c) Fire extinguisher (d) Petrol additive Answer: (d) Petrol additive

Gobar gas contains mainly:

Question: Gobar gas contains mainly: (a) Methane (b) Carbon dioxide (c) Butane (d) Carbon Monoxide Answer: (a) Methane

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