Chemistry
Choose the correct answer from the list given below: (a) The ore which can be concentrated by magnetic separation. (b) Empirical formula of Ethyne.
Answer
(a) Haematite
Reason — Haematite is an iron ore that can be concentrated by magnetic separation because it contains iron, which is magnetic.
(b) Molecular formula of Ethyne is C2H2. The simplest whole-number ratio of carbon to hydrogen in Ethyne is 1:1. Therefore, the empirical formula of Ethyne is CH.
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