S and Some P Block Elements Archives - Page 6 of 16

Aluminium oxide is not reduced by chemical reaction since Options (a) reducing agent contaminate (b) the process pollute the environment…

7 years ago

Pb + Conc.HNO₃ gives Options (a) Pb(NO₃)₂ + NO₂ (b) PbNO₃ + NO (c) Pb(NO₃)₄ + NO₃ (d) Pb(NO₃)₃ +…

7 years ago

The lusture of a metal is due to Options (a) its chemical inertness (b) its high polishing (c) its high…

7 years ago

Which of the following is true for diamond Options (a) diamond is a bad conductor of heat (b) diamond is…

7 years ago

Diamond is used I glass cutting due to its Options (a) high metallic bonding (b) extreme hardness (c) low metallic…

7 years ago

Glass is soluble in Options (a) HClO₄ (b) Hf (c) aqua regia (d) H₂SO₄ Correct Answer: HfExplanation:Unlike other halogen acids,…

7 years ago

CO₂ is obtained by heating Options (a) NaHCO₃ (b) Na₂CO₃ (c) MgCO₃ (d) K₂CO₃ Correct Answer: NaHCO₃Explanation:No explanation available. Be…

7 years ago

Melting point is the higher for Options (a) Ga (b) B (c) In (d) Al Correct Answer: BExplanation:In the boron…

7 years ago

Li occupies higher position in the electrochemical series of metals as compared to Cu since Options (a) the standard reduction…

7 years ago

Alum in dyeing of clothes is used as Options (a) bleaching agent (b) fire proof material (c) mordant of colour…

7 years ago