Question # 1

Which of the following analytical technique is used for the separation of an interfering substance or analyte from the mixture.

Choose an answer

Precipitation

Distillation

Electrode position

All above these

Which of the following is a source of energy but does not cause pollution.

Choose an answer

Gaslone

Nuclear power plant

Fossil fuels

Sun

Which of the following does not represent Lewis acid.

Choose an answer

ZnCl2

FeCl2

BF3

Bul4

Which of the following is not a physical test.

Choose an answer

Colour test

Flame test

Beed test

Wet test

Which of the following level is an indicator of hearing loss.

Choose an answer

> 25 dB

< 25 dB

<20 dB

None of these

Phosphoric acid is the most important of the phosphorus oxy acids. Industrially phosphoric acid is prepared by.

Choose an answer

The Ostwald process

The Haber's process

The reaction of phosphate rock with sulphuric acid

The reaction P4O10 with water.

The common oxidation state of elements of group V A is.

Choose an answer

-3

+3

+5

Any above

An example of acrylic monoterpenoid is

Choose an answer

Dipentene

Myocene

a- terpineol

Limonene

The bond order gives the following valuable information.

Choose an answer

Stability of the molecules of ions

Bond dissociation energy and bond length

Magnetic properties

All of the above

Which of the following statement is related with CO.

Choose an answer

It is a colorless and tasteless gas

It has less affinity to words hemoglobin

It has a boiling point of -192 ^oC

It is a dangerous asphyxiant

Arrange the following in order of increasing boiling point.

Choose an answer

CH3OH < CH3Cl < RbCl < CH4

CHOH < CH4 < CH3Cl < RbCl

RbCl < CH3Cl < CH3OH < CH4

CH4 < CH3Cl < CH3OH < RbCl

Which among the following is insoluble in water.

Choose an answer

LiOH

KOH

NaOH

RbOH

The property associated in thermometric tittration is

Choose an answer

Change in weight

Rate of change in weight

Heat evolved or absorbed

Change in temperature

The total number of crystal systems and the number of Bra via is lattices are.

Choose an answer

7,7

7,14

14,7

14,28

How pig iron is usually obtained from

Choose an answer

iron pyrite

Limonite

Hematite

Siderite

The ionization potential of K would be numerically equal to.

Choose an answer

Electron affinity of Ar

Electromagnetically of K

Electron affinity of K+

ionization energy of Ca

H-Bond has a preferred bonding direction like

Choose an answer

Ionic bond

Covalent bond

Co ordinate bond

None of these

The unit of nucleic acid having base sugar combination is called.

Choose an answer

Nucliec acid

Nucleoside

Nucleotide

None of these

The carbonate of which of the following will have highest lattice energy.

Choose an answer

Barium

Magnesium

Calcium

Strontium

One of the best fluorinating agent is

Choose an answer

XeF2

XeF4

XeF6

None of above

Any property whose magnitude is independent of the amount of substance present is called a/an

Choose an answer

Extensive property

Colligative property

Structural propety

Intensive property

in monel metal copper is alloyed wiht which metal.

Choose an answer

Fe

Mn

Ni

All

In the Lewis structure of H2SO4 molecule the total number of unshared electrons in valence shell of various atoms is.

Choose an answer

8

16

12

20

Which of the following disposal method is used or municipal wastes.

Choose an answer

Compaction

Composting

Recycling

Chemical processing

All above

For which of the following compounds is the rate of hydrolysis by aqueous alkali most likely to be independent of the hydroxide ion concentration.

Choose an answer

1-Chlorobutane

2- Bromobutane

1- Iodobutane

2- Bromo -2- methyl butane

The dyes which are produced on the fibre in suit by reactions are known as.

Choose an answer

Mordant dyes

Fast dyme

Ingrain dyes

Disperse dyes

Solid phase micro extraction is a solvent less extraction technique This technique is used for preparation of samples for analysis by which of the following technique.

Choose an answer

HPLC

GC

TLC

Electrophoreals

The IUPAC name of HCOOCH3 is.

Choose an answer

Methoxy methanol

Ethanoic acid

Methyl methanoate

Methoxy methane

A catalyst increases the rate of a reaction because.

Choose an answer

It provides the necessary energy to the colliding molecules to cross energy barrier

It decreases the heat of the reaction

It decreases the order of the reaction

It provides a different path of lower activation energy.

Equilibrium constant Kp and Kc are related as

Choose an answer

Kc = Kp (RT)delta n

Kp = Kc (RT)an

Kp = (Kc/RT)delta n

Kp -Kc = (RT)delta n

The suffix "ate" at the end of the name of the compiled signifies that it is.

Choose an answer

Cation

Anion

Neutral

None of above

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