SSC JE Electrical Engineering 2017 Set 4 Paper

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Question : 55 of 200
 
Marks: +1, -0
Consider the following pairs:
Name : Formula
(1) Propan-2-ol: CH3CH2CH2CH2CHO
(2) 1-Bromo-2,2-dimethylopropane: (CH3)CCH2Br
(3) Methanal: HCHO
(4) Pentanal: CH3–CH(OH)–CH3
Which of the above pairs are correctly matched?
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