Sulfur chloride, $$$\mathrm{SCl}_{2}$$$, is a liquid at room temperature. When $$$\mathrm{SCl} l_{2}$$$ is added to water, misty fumes are seen and a solution is made that turns universal indicator red. (i) Identify the type of reaction that occurs when $$$\mathrm{SCl}_{2}$$$ is added to water. ................................................................................................................................. (ii) Name a chloride of a different Period 3 element that is also a liquid at room temperature and produces misty fumes when added to water. .................................................................................................................................

Chemistry

IGCSE&ALevel

CAIE

Exam No：9701_s24_qp_21 Year：2024 Question No：2(a)

Answer:

Knowledge points:

13.4.1 describe structural isomerism and its division into chain, positional and functional group isomerism

13.4.2 describe stereoisomerism and its division into geometrical (cis/trans) and optical isomerism (use of E, Z nomenclature is acceptable but is not required)

13.4.3 describe geometrical (cis/trans) isomerism in alkenes, and explain its origin in terms of restricted rotation due to the presence of π bonds

13.4.4 explain what is meant by a chiral centre and that such a centre gives rise to two optical isomers (enantiomers) (Candidates should appreciate that compounds can contain more than one chiral centre, but knowledge of meso compounds, or nomenclature such as diastereoisomers is not required)

13.4.5 identify chiral centres and geometrical (cis/trans) isomerism in a molecule of given structural formula including cyclic compounds

13.4.6 deduce the possible isomers for an organic molecule of known molecular formula

Answer:

Knowledge points:

Solution:

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