Class 10 Chemistry Certification MCQs – Practice Test 3 (Chapter 9)

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MCQ 11: Which of the following is used for artificial ripening of fruits?

ethylene
acetylene
phenol
methanol

MCQ 12: Alcohols (C_nH_2n+1OH) are formed by the attachment of:

OH group to hydrocarbon chain
HX group to hydrocarbon chain
O to hydrocarbon chain
H to hydrocarbon chain

MCQ 13: The general formula for amines is:

R-CH₂
R₂CH
R-NH₂
R-COOH

MCQ 14: An alkane with molecular formula C7H16 is called:

butane
pentane
hexane
heptane

MCQ 15: What is the general formula of alkenes?

CnH2n+2
CnH2n
CnH2n-2
CnHn

Class 10 Chemistry Quiz App & e-Book – Organic Chemistry Certification Guide

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