Aldehydes Ketones And Carboxylic Acids — Chemistry

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Question 1
EasyJEE

Not a Lewis base:

A. BF3
B. NH3
C. H2O
D. Cl−Cl-
Question 2
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Element showing variable valency:

A. Fe
B. Na
C. Mg
D. Al
Question 3
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Number of valenceelectronsinhalogenvalence electrons in halogen is:

A. 7
B. 1
C. 2
D. 5

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