Question # 1

The atomic orbitals are progressively filled in order of increasing energy. This statement is called as

Choose an answer

Hund's rule

Aufbau's rule

(n+1) rule

Planck's rule

Which of the following reacts with excess oxygen to form a normal oxide.

Choose an answer

Li

Na

K

Rb

Layer of the C -atom in graphite are hold together by

Choose an answer

Covalent bonds

Free electrons

Ionic bond

Van Dar Waals forces

Which of the following is raw material not present on the cement.

Choose an answer

Lime stone

Gypsum

Red lead

Blast furnace slag

The pink colour of phenolphthalen in in basic medium is due to the

Choose an answer

Cationic form

Anionic form

Natural form

OH- ions of the base

Which type of organic compounds does fat belong to.

Choose an answer

Alkene

Ester

Alkanol

Alkanoic acid

__________ is used for fruits, vegetables and tobacco

Choose an answer

Potassium Chloride

Potassium Sulphate

Potassium nitraite

All above

Group VA of the periodic table consist of elements.

Choose an answer

3

4

5

6

'A line, a point or a plane about which a symmetry operation is performed, is known as.

Choose an answer

Symmetry operation

Symmetry element

Reflection

Inversion

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

Co ordinate compounds are

Choose an answer

Polar

Non polar

Dem polar

None of above

Carbides because of their hardness are

Choose an answer

Ionic carbides

Interstitial carbides

covalent carbides

Any of above

The particles of about 1 nm need _______ activation energy to enter either aggregation processes or reactions to give to new chemicals.

Choose an answer

Higher

Lesser

N o

All above

The IUPAC name of HCOOCH3 is.

Choose an answer

Methoxy methanol

Ethanoic acid

Methyl methanoate

Methoxy methane

The bond formed by complete transfer of electrons from electropositive to more electronegative atom is called.

Choose an answer

Ionic bond

Covalent bond

Mettalic bond

Co ordinates bond

Which of the following reagent cannot be used to detect the phenolic group.

Choose an answer

Neutral FeCl3

I2/NaOH

NaOH solution

Br2/H2O

It is possible to distinguish between optical isomers.

Choose an answer

Using chemical tests

By mass spectrometry

By IR spectroscopy

By polarimetry

For one mole a gas, the total kinetic energy is equal to.

Choose an answer

2/3 Rt

3/2 RT

2/3 kT

3/2 kT

"Acids are substance whose aqueous solutions turned blue litmus red and tasted sour" stated by

Choose an answer

Davy

Liebig

Boyle

Rouelle

What is called black gold.

Choose an answer

Petroleum

Coal

Coal tar

Natural gas

Which of the following exists as polymeric chains in solid state.

Choose an answer

Sr Cl2

Ba Cl2

MgCl2

BeCl2

The most widely used method of extracting metal ions is the formation of a chelate molecule with an organic chelating agent The chelating agents are.

Choose an answer

Strong acids

Strong bases

Weak bases

Weak acids

Which of the following pollutant is generated from combustion of fuel.

Choose an answer

Smoke

SO2

CO2

Metallic oxides

All above

What is the most undesirable of all the elements commonly found in steels.

Choose an answer

Sulphur

Phosphorus

Silocn

Magnesium

Which of the following compound will be optically active.

Choose an answer

Suceinic acid

Meso tartaric acid

Acetic acid

Lactic acid

For quality control of Portland cement, the test essentially done is.

Choose an answer

Setting time

Soundness

Tensile strength

All

Which of the following is not a proper use of Ni.

Choose an answer

It is used as catalyst

It is used in alloy formation

It is used in the preparation of Monel metal

It is attached by alkalis

Natural fertilizers are materials derived from

Choose an answer

Plants

Animal

Algae

All of above

Both the elements are typical non metals.

Choose an answer

B & Ai

B & Si

Al & Si

Any of above

Which of the following techniques is involved in purification of organic compound.

Choose an answer

Distillation

Sublimation

Solvent extraction

All above

Which of the following technique is used to separate substance based on their charge to mass ratio.

Choose an answer

HPLC

HPTLC

GC

Electrophoresis

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