ECAT Pre Engineering Chemistry Chapter 19 online mcq test with answers for chapter 19 (Aliphatic Hydrocarbons)

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.#	Question	Answer
1	Hydrocarbons are organic compounds which contain elements such as	A. Hydrogen B. Carbon C. Hydrogen and carbon D. Halogens
2	Octane number is zero for	A. n-Heptane B. Isooctane C. n-Hexane D. Isoheptane
3	When sodium benzoate is treated with soda lime (NaOH) benzene is formed. What is the other product	A. Na₂CO₃ B. NaHCO₃ C. Ca(OH)₂ D. CaCO₃
4	The method in which alkanes prepared by alkyle halides in the presence of palladium - charcoal is	A. Hydrolysis B. Electrolysis C. Hydrogenation D. Hydrogenolysis
5	Th IUPAC name of the compound having formula (CH3) 3 C - CH = CH2 is	A. 1, 1-Dimethyl-3-butene B. 1,1,1-Trimethyl-3-propene C. 3,3,-Dimenthyl-1-butene D. 3,3,3,-Trimethyl-1-propene
6	C₁₈and onward hydrocarbons are normally	A. Gases B. Liquids C. Solids D. Plasma
7		A. Pent -1-ene-3-yne B. 2-pentyne-4-ene C. 1-pentene-3-yne D. Pent-2-yen-4-ene
8	If we remove one hydrogen atom from an alkane we obtain a group called	A. Acetyle group B. Formyle group C. Alkyle group D. Ketyle group
9	Which one of the following is (m-xylene)	A. 1,2 dimethyl benzene B. 1,3 dimethyl benzene C. 1,5 dimethyl benzene D. 1,4 dimethyl benzene
10	The C-C bond angles in benzene ring are	A. 119° B. 120° C. 121° D. None

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ECAT Pre Engineering Chemistry Chapter 19 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons

ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons

Alkynes are colourless & odouless except

Boiling point of n-butane is:

The three alternate single and double bonds in the benzene ring are called

Complete combustion of alkane yields

Alkanes are least reactive towards:

Which one of the following is (m-xylene)

The alkynides are used for the ----------- of alkynes

Alkyl benzenes are readily oxidized by axidfied

Vinyl acetylene combines with HCl to form:

The electrophile in aromatic sulphonation is

The hydrocarbons having double bonds normally end with suffix

Catalytic oxidation of alkanes is used for the preparation of

β-β- dichloroethyle sulphide is commonly known as:

Acetylene is used in the manufacture of

The Total coal resources of Pakistan are estimated to be

Octane number is zero for

Vinyl acetylene combines with HCI to form

When sodium benzoate is treated with soda lime (NaOH) benzene is formed. What is the other product

Replacement of hydrogen by NO2group is called

Which of the following is an ortho-para directing group

Alkyl halides when reduced with nascent hydrogen in the presence of Zn + HCI, are converted to

Synthesis rubber is made by polymerization :

For preparing an alkane, a concentrated aqueous solution of sodium or potassium salt of saturated carboxylic acid is subjected to

Benzene is obtained from benzene sulphonic acid by treating with

Write the name of following alkene CH2= CH - CH = CH2

Which of the following acid can be used as a catalyst in Friedal Craft's reactions

Most common reactions of benzene and its derivatives are

Raney - nickel is the alloy of Ni with

During the preparation of alkanes the hydrogenation of alkenes or alkynes the catalyst may be

Ethylene can be prepared in the laboratory by heating together ethyl alcohol and

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ECAT Chemistry Chapter 19 Important MCQ's

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Replacement of hydrogen by NO₂group is called

Write the name of following alkene CH₂= CH - CH = CH₂