Question # 1

In the atosphere, CO₂is about

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0.01%

0.03%

0.05%

0.09%

Test of incomplete combustion of petrol in the presence of

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CO₂

SO₂

NO₂

Co

Alicyclic compounds are the homocyclic compounds which contain a ring of

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5 or more carbon atoms

6 or more carbon atoms

3 or more carbon atoms

4 or more carbon atoms

Synthetic organic pesticides formulated nowadays are more then:

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One thousand

Ten thousand

Two thousands

Twenty thousand

Which of the following molecules should be more volatile

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HF

HCl

HBr

HI

The cause of minamate disease is the pollution of:

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arsenic (As) into atmosphere

industrial waste having Hg

organic waste in drinking H₂O

oil spills in H₂O

In the cyclic structure of the glucose when the position of atoms on carbon 1 is called one isomer changes to other. These isomers of glucose are called:

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metamers

position isomers

cis-trans

annomers

d-d transition cannot be observed in

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Cr

Cu

Mn

Zn

Phenol can be diatingushed from ethyl alcohol by all of the following reagents except

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lodoforrn test

Na

Br2 /H2O

NaOH

The molar volume of CO₂ is maximum at:

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S.T.P. (0^∘C and 1 atm)

127^∘C and 1 atm

0^∘C and 2 atm

273^∘C 2atm

The main pollutant of leather in the waste water is due to the salt of:

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Lead

Chromium (VI)

Copper

Chromium (III)

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Zn

H

S

O

A filtration process could be very time consuming if it were not aided by a gentle suction which is developed:

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If the paper covers the funnel up to its circumstances

If the paper has got small sized pores in

If the stem of funnel is large so that it dips in to filtrate

If the paper fits tightly.

White phosphorus is

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A mono atomic gas

P₄, a tetrahedral solid

P₈, a crown

A linear diatomic molecule

A pair of elements in the same family in the periodic classification is

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Cl and C

Ca and Al

N and Ne

Na and K

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Alkyl

Alkyl nitrile

Cyanogens

Amine

The classify the elements, Newland gave the idea of

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Octaves

Triads

Atomic volume

Atomic mass

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Rate = k[FeCl₃] [Kl]²

Rate = k[Fe⁺³][Cl^-1] [Kl]

Rate = k[Fe⁺³] [Cl^-1][K;]

Rate = k[Kl]³[FeCl₃]°

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A primary alcohol

A secondary alcohol

An eher

A phenol

Which of the following is a thermosetting plastic

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PVC

Polyethylene

Polystyrene

Melamines

In primary alkyl halides, the halogen atom is attached to a carbon which attached to how many carbon atoms?

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Two

Three

One

Four

On adding sodium nitroprusside ketones give

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Red

Wine red

White

Orange

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