Question # 1

The designation of an orbital with n =4 and l = 1 in

Choose an answer

4 s

4 p

4 d

4 f

Which of the following extract is used for wet tests of acid radicals.

Choose an answer

Calcium carbonate extract

Sodium iodide extract

Sodium carbonate extract

Ammonium carbonate extract

Phenol on reaction with ethanoic anhydrides in the presence of sodium ethanoate gives.

Choose an answer

Phenyl benzoate

Ethyl benzoate

Phenyl ethanoate

Phenyl methyl ether

In which polymerization branching of chain cannot be possible.

Choose an answer

Free radical

Cationic

Anionic

Anionic and Zieglar Natta

The glow of yellow phosphorous as is result of slow oxidation in air is called.

Choose an answer

Chemiluminescene

Luminescence

Bioluminescence

Photolysis

Which of the following hydroxides is most stable.

Choose an answer

Mg (OH)2

Ca(OH)2

Sr (OH)2

Ba (OH)2

________is best in its cleaning action.

Choose an answer

Soap

Detergents

Surfactant

None of these

Which of the following statements is not correct about noble gases.

Choose an answer

Their ionization energies are very high

Their electron affinities are nearly zero

They do not form any chemical compounds

They are not easily liquefied

If Principal quantum number n = 4 the quantum number l can have calue.

Choose an answer

1,2,3 and 4

0,1,2 and 3

1,2 and 3 only

None of the abvoe

Urea is fertilizer

Choose an answer

Nitrogen fertilizer

Potash fertilizer

Phosphorous fertilizer

Complete fertilizer

Which of the following statements is not correct with the concept of Bronsted concept of acids and bases.

Choose an answer

An acid can donate a proton

A base can accept a proton

This concept has many bases that have OH- ions

This concept is more general

Primary structure of protein refers to

Choose an answer

Amino acid sequence

Arrangement of peptide chains

Orientation of amino acids

Whether is has a or b helix in space structure.

Pick out the incorrect statement for transition metals.

Choose an answer

Cu+ is not a transition metal ion

Transition metals do not exhibit variable oxidation states

Transition metal ions are coloured

Transition metals and majority of their compounds are paramagnetic

The matrix is usually in the form of.

Choose an answer

Sand

Limestone

Rocks

All

Correct order of increasing ______ I effect of groups is

Choose an answer

----- NO2 >-----------CN > ------------COOH > -------------F

--------F > -------------COOH>----------CN>--------NO2

-----F> -------------CN>--------NO2 > COOH

-------CN > ------------COOH > -----------NO2 >----------F

Identify a dye which was ot originally obtained from plant source.

Choose an answer

Alizarin

Tyrian purple

Indigotin

Quercitrin

The vapour pressure of a liquid

Choose an answer

Always increase's with temperature

Always decreases with temperature

Is independent of temperature

Increase up to the boiling point

Which number of halogen family does not show positive oxidation state.

Choose an answer

Fluorine

Chlorine

Bromine

Iodine

The sugar present in DNA is

Choose an answer

D- Ribose

D-Glucose

2- Doxy D-Ribose

3-Deoxy D-ribose

Fluorine is.

Choose an answer

Powerful oxidizing agent

Most reactive element

Used as refrigerants

All of above

Which of the following combination is used to make buffer.

Choose an answer

NaOH and HCl

KOH and H2SO4

CH3COOH and CH3COONa

CH3COOH and NH4OH

Which of the following unit cells has least symmetry.

Choose an answer

Monocline

Cubic

Triclinic

Tetragona

Which of the following molecules can oxhibit geometrical isomerism.

Choose an answer

CH3CH = CH2

CH3CH = CHCH3

(CH3)2 C = CH2

CH3CH = C(CH3)2

Ionic bond are also forces called as.

Choose an answer

Polar bond

Electrovalent bond

None polar bond

Both A and B

Which of the following statement is not related with industrial ecology.

Choose an answer

Study of interactions between human activities and its environment

Industrial ecology seeks to optimize the total industrial materials cycle from virgin material to finished product

Industrial impacts on the environment

Economic system are viewed in isolating from their surrounding

Which of the following cast irons is a high carbon silicon alloy.

Choose an answer

Gray iron

White iron

Malleable iron

Alloy iron

Noble gases are used in discharge tubes to give different colours. Raddish orange glow is due to.

Choose an answer

Ar

Ne

Xe

Kr

Used for sterilizationof drinking water

Choose an answer

F

Br

Cl

I

Which of the following is not a property of Ni.

Choose an answer

it is a soft silvery white metal

It is malleable and ductile

It is highly magnetic

It has high electrical and thermal conductivities

The most stable oxidation state shown by lead is.

Choose an answer

+2 , +4

+2 only

+3 , +4

+4 only

The percentage of nitrogen in ammonia is _______________%

Choose an answer

32

82

25

55

More Classes

Other Links

PPSC Chemistry Full Book 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