MCQ 11 Mark22 carat gold is gold of …………… purity.A1✓0.9166C0.75D0.44AnswerCorrect option: B. 0.91660.9166View full question & answer→
MCQ 21 Mark…………… is a highly malleable metal.A IronB NickelC Manganese✓ AluminiumAnswerCorrect option: D. Aluminium AluminiumView full question & answer→
MCQ 31 MarkPure ………… is soft.A aluminiumB silver✓ goldD platinumAnswerCorrect option: C. gold goldView full question & answer→
MCQ 41 MarkThe electronic configuration of oxygen is …………….. .A 2, 5✓ 2, 6C 2, 4D 2, 8, 6AnswerCorrect option: B. 2, 6 2, 6View full question & answer→
MCQ 51 MarkThe valence electron in …………… atom is 1.A magnesium✓ sodiumC siliconD aluminiumAnswerCorrect option: B. sodium sodiumView full question & answer→
MCQ 61 Mark…………….. is an acidic oxide.A Na2O✓ CO2C FeOsD H2OAnswerCorrect option: B. CO2 CO2View full question & answer→
MCQ 71 Mark……………. is a metal which is in liquid form at ordinary temperature.✓ GalliumB MagnesiumC SodiumD ScandiumAnswerCorrect option: A. Gallium GalliumView full question & answer→
MCQ 81 Mark……………. is a metalloid.A Aluminium✓ AntimonyC ZincD MercuryAnswerCorrect option: B. Antimony AntimonyView full question & answer→
MCQ 91 Mark…………… is a non-metal.A AugB Ag✓ BrD CuAnswerCorrect option: C. Br BrView full question & answer→
MCQ 101 Mark………….. is a metal.✓ HgB SC PD BrAnswerCorrect option: A. Hg HgView full question & answer→
MCQ 111 MarkMetalloids have properties of …………. .A metalsB non-metals✓ both metals and non-metalsD neither metals nor non-metalsAnswerCorrect option: C. both metals and non-metals both metals and non-metalsView full question & answer→