SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which property is similar for chlorine, bromine, iodine and astatine in Group 17 of the Periodic Table?I Reacts with water to form an acidic solution.II Reacts with sodium hydroxide solution to form two salts.III Exist as solid at room temperature.IV All are good bleaching agents.
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I and II
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I and III
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II and IV
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III and IV
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Explanation:
Detailed explanation-1: -All the elements of group 17 have 7 electrons in its valence shell. These elements require one electron to finish their octet. They can complete their octet either by picking up an electron or sharing an electron. The oxidation states of all the elements belonging to this group are-1.
Detailed explanation-2: -Fluorine, Chlorine and Bromine are non-metals with seven valence electrons . They are highly electronegative elements with valency of one. They exist as diatomic molecules . They form ionic compounds with alkali metals.
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