10th class Chemistry chapter 12 online mcq test with answers for matric part 2 chemistry unit 12(Hydrocarbons)

Chemistry 10th Class English Medium Unit 12 Online Test

Sr. #	Questions	Answers Choice
1	The alkanes consisting of C₅ to C₁₀	gases liquids solid plasma
2	Carbon Tetra chloride is used in .	Fertilizer Dry cleaning Metallurgy Anesthesia
3	Alkanes do not react in	Diffused sunlight Dark Bright sunlight None of these
4	The general formula of alkynes is	C<sub>n </sub>H<sub>2n</sub> C<sub>n </sub>H<sub>2n+2</sub> C<sub>n </sub>H<sub>2n-2</sub> C<sub>n</sub> H<sub>2n+1</sub>
5	Condensed formula of ethane is	C<sub>3</sub>Cl<sub>8</sub> C<sub>2</sub>Cl<sub>6</sub> H<sub>3</sub>CCH<sub>3</sub> None of these
6	Which of the following gas is used in warfare?	Methane Ethane gas Mustard gas None of these
7	Traces of acetylene are present to coal gas about.	0.06 % 0.08% 1.1 % 90%
8	Alkanes are produced in large amounts by cracking of	Natural gas Petroleum Benzene Xylol
9	Chemical formula of chloroform is :	CH<sub>2</sub>Cl<sub>2</sub> CH<sub>3</sub>Cl CHCl<sub>3</sub> CCl<sub>4</sub>
10	Alkanes give reaction only	Addition Decomposition Substitution Displacement
11	Carbon black is used in the manufacture of.	Dry cleaning Shoe polishes. Fertilizer None of these
12	Which is simplest alkane?	CH<sub>4</sub> C<sub>2</sub>H<sub>8</sub> C<sub>2</sub>H<sub>2</sub> C<sub>2</sub>H<sub>4</sub>