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	An alkane is produced when an alkyle halide reacts with zinc in the presence of	A. HCl B. CH₃COOH C. Both a & b D. None
2	Which of the following is not an electrophitic substitution reaction of benzene	A. Nitration B. Sulphonation C. Fridel-Craft alkylation D. Free radical chlorination of benzene
3	The four bonds of carbon in methane are directed towards the corners of	A. Cube B. Pentagon C. Hexagon D. Tetrahedron
4	The order of reactivity of halogens in aliphatic substitution reactions is	A. Br2 > C12 > F2 B. C12 > Br2 > F2 C. C12 C12 > Br2 D. F2 > Br2 > C12
5	All are ortho & Para directing except	A. X B. OH C. NR₃ D. NH₂
6		A. 2, 3-dimethylbutane B. 2, 3-methylbutane C. 2-dimethylbutane D. Dimethylbutane
7	B-B'-dichloroethyl sulphide is commonly known as	A. Mustard gas B. Laughing gas C. Phosgene gas D. Bio gas
8	During the preparation of alkynes the active metals that react with tetra halo-alkanes are	A. Zn B. Mg C. Both a and b D. None
9	Which of the following substances is used as an antiknock compound?	A. Tetraethyl lead B. Lead tetrachloride C. Lead acetate D. Ethyle acetate
10	Ethylene combines with water in the presence of H₂SO₄+ HgSO₄and forms	A. Ethyle chloride B. Ethyle alcohol C. Carboxylic acid D. None of these

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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

Which compound was recognized the parent member of aromatic compounds

Kolb's method has limited synthetic applications due to

Which class of compound is more reactive

Acetylene when treated with 10% H2SO4in the presence of HgSO4adds one molecule of water to form

Most common reactions of benzene and its derivatives are

the unreactivity of alkanes is based upon

The reaction-method that does not give an alkane is

Catalytic oxidation of alkanes is used for the preparation of

β-β- dichloroethyle sulphide is commonly known as:

Kolb's method of alkanes production, is actually

Raney - nickel is the alloy of Ni with

Hydrocarbons are divided into aliphatic, alicyclic and aromatic which structure among the following show an alicyclic hydrocarbon

Which is more active ?

Synthesis rubber is made by polymerization :

Sp3hybird orbitals are oriented at an angle of

Which of the following possesses the highest melting point?

Paraffins are also called

Substitution of halogen in the benzene ring requires catalyst

Which one does not declourized KMnO4

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

Formula of chloroform is

During nitration of benzene, the active nitrating agent is

The process in which orbitals of different energies and shapes mix with each other to give equivalent hybrid orbitals is called

Replacement of hydrogen by NO2group is called

CnH2nis the general formula of

When n-hexane is heated in the presence of Pt at 500°C, it cyclists to give

To differentiate isomers we use

All C - H bond lengths of benzene ring is

Which one of the following gases is used for artificial ripening of fruits

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

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ECAT Chemistry Chapter 19 Important MCQ's

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Acetylene when treated with 10% H₂SO₄in the presence of HgSO₄adds one molecule of water to form

Sp³hybird orbitals are oriented at an angle of

Which one does not declourized KMnO₄

Replacement of hydrogen by NO₂group is called

CnH_2nis the general formula of