Class 10 Chemistry Competitive Exam MCQs – Practice Test 21 (Chapter 2)

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MCQ 101: How many amino acids are not synthesized by our bodies?

MCQ 102: Which of the following is a pentahydroxy ketone?

glucose
fructose
sucrose
starch

MCQ 103: Which of the following is oligosaccharide?

glucose
fructose
maltose
galactose

MCQ 104: Considering the structure of DNA, the two strands twisted around each other in a spiral formation are called:

single helix
double helix
triple helix
tetra helix

MCQ 105: The strands of DNA are held together by:

covalent bond
ionic bond
hydrogen bond
dipole dipole interaction

Biochemistry MCQs App & e-Book – Class 10 Chemistry Competitive Exam

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