Question # 1

Which is not a method for solid waste management

Choose an answer

Landfill

Incinerating

Recycling

None of these

A transition metal complex can be recognized by various terms. Which is not the proper term

Choose an answer

Central metal ion

Coordination number

Ligand

Geometry of complex

Depletion of ozone layer is due to

Choose an answer

Oxides of nitrogen

Oxides of carbon

Oxides of sulphur

None of the above

Chlorofluorocarbon, CF₂CI₂, plays an effective role in removing O₃(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

Choose an answer

During the preparation of alkynes the active metals that react with tetra halo-alkanes are

Choose an answer

Zn

Mg

Both a and b

None

One kilocalrie is equal to

Choose an answer

4.184 x 10³J

4.184 x 10⁴J

4.184 x 10²J

None of these

Gradual addition of electronic shells in the nobel gases causes a decrease in their

Choose an answer

Ionization energy

Atomic radius

Boiling point

Density

Toluene can be oxidized to benzoic acid by

Choose an answer

KMnO₄(alk)

K₂Cr₂O₇(acidic)

Both

None

A pseudo uni-molecular reaction has order of reaction :

Choose an answer

3

2

1

0

The human body can synthesize ______ amino acids

Choose an answer

1

10

20

19

A fuel has the same knocking property as a mixture of 70 isooctane (2, 2, 4- trimethyl pentane) and 30% n-heptane by volume the octane number of the fuel is

Choose an answer

100

70

50

40

At present the number of cement factories is Pakistan are

Choose an answer

20

22

25

30

Which of the following is a molecular diseases?

Choose an answer

Allergy

Cancer

German measles

Sickle cell anemia

The correct order of 2nd l.P. of C,N,O and F is

Choose an answer

O > F > N > C

O > N > F > C

C > N > O > F

F > O > N > C

Misch mental is

Choose an answer

An alloy of Aluminium

A mixture of chromium and lead chromate

An alloy of lanthanoid metals

An alloy of copper

The reagents like KMnO_{4 and HCL cannot be filtered through Gooch crucible if its base is covered with :}

Choose an answer

Butterfly paper.

Ordinay paper.

Flying paper.

Filter paper.

When a carboxylic acid reacts with alcohol, it produces a new class of compounds

Choose an answer

Ethers

Esters

Anhydride

Amides

Ether show the phenomenon of :

Choose an answer

Position isomerism

Functional group isomerism

Metamerism

Cis-trans isomerism

Phenol gives ---------- Colour with neutral FeCl₃solution

Choose an answer

Violet

Green

Red

Blue

Choose an answer

0 1

0 2

1 1

1 2

Coordination number of Pt in [Pt Cl(NO₂) (NH₃)]^2-is

Choose an answer

2-

4

1

6

Theα-carbon of 19 out of 20α-amino acids found in protein is chiral or asymmetric. Hence they are optically active. Only one of the 20α-amino acids is not optically active which one is the

Choose an answer

Proline

Glycine

Hitidine

Alanine

Benzene was discovered by Michael Faraday's in

Choose an answer

1824

1825

1826

1827

The temp. used for the hydrogenation of alkenes using Ni is

Choose an answer

2000°C

400°C

200-- 300°C

1000°C

If a reactant or product of a reaction absorbs radiation, then physical method for determining the rate of reaction is

Choose an answer

Spectrometry

Refractometry

Conductivity measurement

Optical method

The apex angle of the folded filter paper is slightly greater than :

Choose an answer

60°

30°

45°

90°

denaturing of alcohol is done by adding methanol in ethanol:

Choose an answer

10%

20%

30%

40%

The reaction rate is expressed in the units of

Choose an answer

mol dm^-3S^-

mol dm^-3

mol dm^-3N^-

dm^-3S^-

Which of the following molecules has a net dipole moments

Choose an answer

CO₂

CS₂

SO₂

CCI₄

The geometry of 4 sp³hybrid orbitals on an atom is

Choose an answer

Square planar

Tetrahedral

Trigonal planar

Linear

The percentage by weight of NaCl, if 6.0 g of NaCl is dissolved in 120 g of water is

Choose an answer

10.5 %

5%

8.02%

11.5%

More Classes

Other Links

ECAT Chemistry Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer