Question # 1

Silver mirror test is applied for

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Aldehydes

Alcohols

Acids

Esters

An electrophile may be

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Positive

Negative

Neutral

Both c and a

A 4f orbital has

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one node

two node

three node

four nodes

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 compound has the maximum repulsion with water?

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C₆H₆

C₂H₅OH

CH₃CH₂CH₂OH

CH₃----O---CH₃

Aqueous solution of glucose C₆H₁₂O₆, boils at 100.052°C. The solution contains

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180 grams glucose in 1 kg water

18 grams glucose in 1 kg water

1.8 grams glucose in 1 kg water

3.6 grams glucose in 1 kg

Bell metal is an alloy of

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Cu, Zn, and Sn

Cu, Zn and Ni

Cu and Zn

Cu and Sn

Terylen fibre is made by reaction of terephthalic acid with

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Ethylene

Ethylene glycol

Glycol

Terylene

Which of the following will have the highest boiling point

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Methanol

Ethanol

Propanal

2-hexanone

All C - H bond lengths of benzene ring is

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1.07A°

1.09A°

1.08A°

None

Atomospheric pollutant is

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CO₂

CO

O₂

N₂

The self linking of carbon atoms is called

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Chelation

Isomerism

Catenation

None of the above

When of the following is isolelectronic with krypton

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Ca⁺⁺

Al⁺⁺⁺

Br^-1

I^-1

The bond order for He₂molecule is

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zero

1/2

1

2

E = hv is the

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Spectral equation

Plank's equation

de Broglie's equation

None of these

Balmer's series is in ______ region

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Visible

U V

I. R.

None

Gasoline is a mixture of hydrocarbons containing carbon atoms

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5 to 10

5 to 8

5 to 12

5 to 11

Which element has highest oxidation potential

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Li

Be

Ba

Ra

Which of the following reagents is used to distinguish acetone and acetophenone

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NaHSO₃

Grinard reagent

Na₂SO₄

NH₄Cl

Benzene reacts with chlorine to form benzene hexachloride in presence of

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Nickel

AlCl₃

Bright sunlight

Zinc

Hybridization in alkanes is:

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sp

sp²

sp³

dsp²

When formaldehyde is added to Grignard reagent we get

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Aldehyde

Acetone

Primary alcohol

Secondary alcohol

Which is the formula of tetra-ammine chloronitro platinum (VI) sulphate?

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[Pt(NH₃)₄(NO₂)]SO₄

[PtNO₂Cl(NH₃)₄]SO₄

[PtCl(NO₂)(NH₃)₄]SO₄

[Pt(NH₃)₄(NO₂)Cl]SO₄

Partial reduction of acetic acid happens with

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NH₃

LiAIH₄

P + HI

PCI₅

Two different hydrocarbon each contain the same percentage by mass of hydrogen. It follows that they have the same

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Empirical formula

Number of atoms in a molecules

Number of isomers

Relative molecular mass

Primary alcohols and aldehydes are oxidized to corresponding:

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alkanes

alkenes

Alkynes

Carboxylic Acid

Orbitals having same energy are called

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Hybrid orbitals

Valence orbitals

Degenerate orbitals

D-orbitals

An excess of aqueous silver nitrate is added to aqueous barium chloride and precipitate is removed by filtration. What are the main ions in the filtrate

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The element caesium bears resemblance with

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Ca

Cr

Rubidium

None of the above

Which of the following species is paramagnetic?

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CO₂

NO

O^2-

CN

A balloon contains 0.02 gram of H₂gas, it contains H₂molecules

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6.02 x 10²³

3.01 x 10²²

6.02 x 10²¹

3.01 x 10²¹

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