What nucleus of atom contains ?
Answer: C
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Group displacement law was given by
Answer: D
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The maximum number of hydrogen bonds in a water molecule is...........
Answer: C
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Which of the following gas is used in cigarette lighters ?
Answer: B
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Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides?
Answer: B
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Which one is not metal
Answer: D
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How many electrons are there in Na+
Answer: B
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Nail polish remover contains ?
Answer: A
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Ozone hole refers to
Answer: A
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Thenitrogen atom has 7 protons and 7 electrons,The nitride ion will have
Answer: B
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