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JEE CHEMISTRY MCQ: P-BLOCK ELEMENTS
1
Medium
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Understanding
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Assertion (A): The halogens absorb visible light.
Reason (R): All halogens are coloured.
Reason (R): All halogens are coloured.
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Correct option: A
Both (A) and (R) are true and (R) is the correct explanation of (A)
Option A is correct because halogens absorb visible light due to electronic transitions, which results in them being colored.
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Reason: Ozone is diamagnetic but is paramagnetic. Which of the following is kept in water? ion and are isoelectronic but in contrast to is chemically inert because of: Consider the following statements
(i) Reaction shows reducing character of sulphur dioxide
(ii) contains four , two and one bond
(iii) gas can be dried effectively by using conc. .
(iv) One of the major use of is in the manufacture of fertilizers.
Which of the following is the correct code for the statements above?