Question # 1

In t-butyl alcohol, the tertiary carbon is bonded to:

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Two hydrogen atom

Three hydrogen atoms

One hydrogen atoms

No hydrogen atoms

The branch of chemistry which deals with the study of compounds containing carbon as an essential elements is called

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Physical

Inorganic

Nuclear

Organic

The major portion of natural gas is

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Ethane

Propane

Butane

Methane

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Condensation

Dehydration

Dehydrogenation

Hydrogenation

The state of hybridization of carbon atom in methane is

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sp³

sp²

sp

dsp²

Identify the heterocyclic compound

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Toluene

Pyridine

Butanoic acid

Propenol

The structure of benzene is

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Hexagonal

Pyramidal

Square planer

Tetrahedral

The bond angle between hydrogen atoms and carbon in alkane is

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104.5°

107.5°

109.5°

120.5°

type of hybridization in CH≡CH is:

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sp

sp²

sp³

dsp²

Peat before conversion to bituminous coal is converted to

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Lignite

Anthracite

Asphalt

None

The formula of esters is

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The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called

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Functional isomers

Position isomers

Chain isomers

Metamers

The functional group of acid amide is

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The rotation of two carbon atoms joined by double bond would happened only if

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Pi bond is broken

Sigma bond is broken

Both bonds are broken

None of above

Hybridzation explain the --------- of orbitals

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Type of bonding

Shapes

Shape and type of bonding

None of above

Which of the following posses linear geometry

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Alkane

Alkene

Alkyne

Benzene

Which statement is true about a free radical

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An atom with a positive charge

An atom with a negative charge

An atom with a lone pair of electrons

An atom with unpaired electron

Fossil fuels consist of :

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Coal

Natural gas

Petroleum

All of these

The general formula for alkenes is

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C_nH_2n+1

C_nH_2n+2

C_nH_2n

C_nH_2n-2

Linear shape is associated with which set of hybrid orbitals

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sp

sp²

sp³

dsp²

Linear shape is associated with set of hybrid orbitals?

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sp

sp2

sp3

dsp2

Peat contains about

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60% carbon

80% carbon

78% carbon

50% carbon

Select from the following the one which alcohol

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Which of the following gases is used for illuminating purpose?

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Methane

Ethane

Propane

Butane

Wohler succeeded in obtaining, urea from

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Cyanogen

Ammonium cyanate

Ammonium hydroxide

None of these

Functional group of ketones is:

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---CHO

---CO---

---C≡ N

---COOH

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

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

Those compound which have any atom other than C as member of rings are called as

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Monocyclic

Hetrocyclic

Aliphatic

Both a and b

A nuclophile must

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Be an atom

A group of atoms

Have a lone pair

Be negatively charged

Carboxylic acid, ester, amide and amino groups are shown. Which is the correct description of these functional groups

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