Complete GATE XL 2020 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 19–21 of 125. Imported answers require review unless explicitly marked reviewed.

Paper practice 125 questionsPage 7 of 42

Question 9

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XL-PMCQ2 marksNeeds review
Given below are Newman projections of ethylene glycol and 1,2-difluoroethane about their respective C-C bonds. The most stable conformations (lowest energy) of ethylene glycol and 1,2-difluoroethane are
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Question 10

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XL-PMCQ2 marksNeeds review
In the reaction given below, choose the condition that gives an anti-Markovnik’s product.
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Question 11

Open question
XL-PMCQ2 marksNeeds review
Which one of the following hexoses will give an osazone that has a different melting point from that of the osazone obtained from D (+) glucose?
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