Match List - I with List -II and select the correct answer from the codes given below the lists : List – I (Metal) A) Sodium B) Mercury C) Silver D) Lead List – II (Property) 1) Good conductor of electricity 2) Liquid at room temperature 3) Poor conductor of heat 4) Can be easily cut with knife

Question

CollectorBabu · Accepted Answer

Correct Answer: A-4 B-2 C-1 D-3. Sodium is a soft metal, reactive and with a low melting point, with a relative density of 0,97 at 20ºC (68ºF). From the commercial point of view, sodium is the most important of all the alkaline metals. Sodium reacts quickly with water, and also with snow and ice, to produce sodium hydroxide and hydrogen. Mercury has a melting point of -38.9oC, a boiling point of 356.7oC, and is the only metal to remain in liquid form at room temperature. Silver is nearly white, lustrous, soft, very ductile, malleable, it is an excellent conductor of heat and electricity. Lead is a bluish-white lustrous metal. It is very soft, highly malleable, ductile, and a relatively poor conductor of electricity. It is very resistant to corrosion but tarnishes upon exposure to air.

Match List - I with List -II and select the correct answer from the codes given below the lists : List – I (Metal) A) Sodium B) Mercury C) Silver D) Lead List – II (Property) 1) Good conductor of electricity 2) Liquid at room temperature 3) Poor conductor of heat 4) Can be easily cut with knife

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