Question # 1

Which of the following is complex?

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CaSO₄. 0.5H₂O

(C₆H₁₀O₅)_n

C₆H₁₂O₆

CH₄

Which is not the poplar reaction

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In alkynes the bonds between carbon atoms are

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All sigma bonds

All pi(π) bonds

One is sigma and two areπ(pi) bonds

One isπ(pi) and two are sigma bonds

Wohler synthesized first of all the organic compound:

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Carbohydrates

Urea

Aniline

Toluene

The compounds which have any atom other than Carbon atom, in rings are called as

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Monocyclic

Heterocyclic

Homocyclic

None of the above

Which gasoline is better?

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Of low boiling point

Of low molecular mass

Of high octane

All of these

The general formula of saturated alicyclic hydrocarbons is:

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C_nH_n

C_nH_2n

C_nH_2n+2

C_nH_2n-1

The quality of petroleum is determined by

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Decane number

Octane number

Nexane number

None of these

In the presence of high temperature and pressure peat is converted to:

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Lignite

Polymorphism

Polymerization

Catenation

Which is the chain isomer of n-pentane

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Isopentane

Neopentene

N-pentene

Isopentene

Ether show the phenomenon of :

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Position isomerism

Functional group isomerism

Metamerism

Cis-trans isomerism

The self linking property of carbon is called as

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Linking polymerization

Addition

Catenation

Elimination

Which reaction produces a free radical

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SN reaction

Homelytic fission reaction

Heterolytic fission reaction

Addition reaction

In which molecule carbon atom is sp²hybridized

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CH₄

C₂H₄

C₂H₂

None of the above

Organic compounds are soluble in all except

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Benzene

Petroleum

Ether

Water

Which one of the followings is a heterocyclic compound

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Cyclohexanol

Phenol

Pyridine

Anthracene

Which of the following is an aromatic compound

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Propanol

Cyclohexane

Acetone

Benezene

Functional group of ketones is:

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---CHO

---CO---

---C≡ N

---COOH

Unsaturated hydrocarbon containing a double bond are called

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paraffin

Alkanes

Olefins

Acetylene

Source of organic compounds primarily is:

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Plants

Animals

Minerals

A & B

The self linking of carbon atoms is called

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Chelation

Isomerism

Catenation

None of the above

The essential component of organic compound is

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O

C

P

N

Organic compounds resemble to those of inorganic compounds having same

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Ionic properties

Carbon forming long chain or rings

Chemical forces

Isomerism

Benzene is an example of

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Aromatic compound

Cyclic compound

Aliphatic compound

A cyclic compound

Which of the following pair contains isomers of each other

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Propanoic acid and propanone

Acetone and acetaldehyde

Ethyl alcohol and diethyl ether

Methyl alcohol and dimethyl ether

The active part in a molecule is called

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Hetroatom

Functional group

Chemical bond

Ion

When a carbon atom forms single bonds with other carbon atoms, these hybrid orbitals overlap with the orbitals of hydrogen to form four bonds which are

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Three sigma and one P_i

Two sigma and two P_i

One sigma and three P_i

sigma

Identify the heterocyclic compound

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Toluene

Pyridine

Butanoic acid

Propenol

The distillation of coal at high temperature and in absence of air is called

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Vacuum distillation

Normal distillation

Fractional distillation

Destructive distillation

Coal is used to bake bricks in lime kiln:

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40%

60%

80%

None of these

Which of the following posses linear geometry

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Alkane

Alkene

Alkyne

Benzene

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ECAT Chemistry Chapter 18 Fundamental Principles of Organic Chemistry Online Test MCQs With Answers

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