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	Oxidation of alkenes forms:	Glycol Glyoxal Formic acid Oxalic acid
2	The process which convert vegetable oil into banaspati ghee called.	Hydrogenation Halogenation a and b None of these
3	Which of following dehydration of alcohols take place:	NaOH KOH H<sub>2</sub>SO<sub>4</sub> HCl
4	By which process alkenes are prepared from alcohols:	Dehelogenation Dehydrogenation Dehydration Dehydro-halogenation
5	The order of reactivity of hydrogen halides with alkenes is:	HI>HBR HBr>HI HCl>HBr<div><br></div> HBr>HCl
6	Which hydrocarbon decolorizes the pink colour of acidic solution of potassium permanganate?	CH<sub>4</sub> C<sub>2</sub>H<sub>4</sub> C<sub>2</sub>H<sub>6</sub> C<sub>2</sub>H<sub>5</sub>
7	Dehydrohalogenation take place in the presence of.	Aqueous NaOH Alcoholic KOH Aqueous KOH Alcoholic NaOH
8	General formula of alkenes.	C<sub>n</sub> H<sub>2n-2</sub> C<sub>n</sub>H<sub>2n</sub> C<sub>n</sub>H<sub>2n+2</sub> C<sub>n</sub>H<sub>2n-1</sub>
9	One of the hydrocarbons reacts with one mole of hydrogen to form a saturated hydrocarbon. What is the formula could be of the x:	C<sub>3</sub>H<sub>8</sub> C<sub>6</sub>H<sub>12</sub> C<sub>4</sub>H<sub>10</sub> C<sub>2</sub>H<sub>16</sub>
10	Which gas in produced during ripening of bnabanas.	Methane Ethene Acetylene Carbon dioxide
11	The reduction of alkyl halides takes place in the presence of.	Zn/HCl Na/HCl Mg/HCl Cu/HCl
12	Which are called paraffines?	Alkyle Alkynes Alkenes Alkanes

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