Question

Study the given table carefully and identify the group that is correctly matched.​

• A. II and IV
• B. II and III
• C. I, II and III
• D. II, III and IV

Answer 1

The correct option is A II and IV

$\bullet$ In group I, gold chain is malleable, aluminium container is hard but sodium is a soft metal that can be cut with a knife and phosphorus does not possess shine and is non-lustrous.Therefore, materials in group I are not correctly arranged.
$\bullet$ In group II, aluminium is a malleable metal, gold chain is a hard material, zinc rod is indeed lustrous and silver bar exhibits sonority. All of these observations are accurate. Therefore, materials in group II are correctly arranged.
$\bullet$ In group III, iron rod is sonorous , zinc is not malleable, sulphur powder is non-lustrous and charcoal is not hard. Therefore, materials in group III are not correctly arranged.
$\bullet$ In group IV, the platinum ring is malleable, iron rod is a hard material, iodine, which is a non-metal and thus exception to lustre property, is indeed lustrous and a copper vessel does exhibit sonority. Therefore, materials in group IV are correctly arranged.
$\bullet$ Groups II and IV are the only ones that are correctly matched. Thus, option C is the right answer.