Question # 1

In compressive strength of a nanotube ______ its tensile strength.

Choose an answer

I less than

Is greater than

Is equal to

Less than or equal to.

The equation which relates the reaction rates and equilibrium constants of many reactions is known as.

Choose an answer

Taft equation

Hammett equation

Differential equation

Linear equation

The most common beta brase with a composition of 60 % copper and 40% zinc is called.

Choose an answer

Yellow brase

Red brase

Muntz metal

None of above

An induction of dipole or polarity in non polar bond, and consequent electron shifting along a chain of atoms is known as.

Choose an answer

Inductive effect

Resonance effect

Hyper conjugation

None of the above

When FeSO4 is added in the sodium extract the compound formed is.

Choose an answer

Only Na4[Fe (CN)6]

Only Fe (OH)2

Only Na2So4

Mixture of all these

The lightest alkali metal is.

Choose an answer

Lithium

Sodium

Rubidium

Caesium

The splitting of H2O can be carried out through

Choose an answer

Photolysis

Electrolysis

Dialysis

Hydrogenation

Which of the following statement is not correct.

Choose an answer

The element with highest IE belongs to group 18

In each period the element with lowest IE belongs to group I

In each period the element with highest IE is a noble gas

In the second period as we move from left to right, ionization energy increases reqularly.

When HCl is titrated against NaOH , the pH at the equivalence point is.

Choose an answer

zero

> 7

< 7

14

The alpha iron will become paramagnetic at temperature above

Choose an answer

770 C

550 C

660 C

440 C

Which of the following compounds would you use in order to obtain a crystalline derivative of an aromatic amine.

Choose an answer

2,4 Dinitrophenyl hydrazine

Nitrous acid

Benzoyl chlride

None of these

Elements in the same vertical group of the periodical have same

Choose an answer

Number of electron

Atomic number

Number of valence elections

Electronic configuration

Which is the correct configuration of Fe3+ (Z= 26)?

Choose an answer

[Ar] 4s² , 3d⁶

[Ar] 4s² , 4d⁵

[Ar] 3d⁵

None of these

Soft drinks and baby feeding bottles are generally made up

Choose an answer

Polyeater

Polyurethens

Polyamide

Polyetyrene

Which of the following method is used for the coventrating of ores.

Choose an answer

Gravity separation

Magnetic concentration

Fourth floatation

Electrostatic concentration

All

Manganese steel usually contains how many percent of manganese.

Choose an answer

1 to 5

3 to 10

11 to 14

14 to 18

If there are only two components in a solution with mole fraction X_Aand X_Bthen which of the following relation is correct.

Choose an answer

X_A + X _B = 0

X _A + X _B > 1

XA = XB < 1

XA = 1 - XB

Aviation Fuel contains.

Choose an answer

Light Naphtha

Medium Naphtha

Kerosene

Diesel

Which of the following statements is NOT true .

Choose an answer

About 10% of the earth's crust is iron

Pure iron does not have significant industrial use because it is too weak and soft.

Steel in an alloy of carbon and iron with limits on the amount of carbon

None of above

The correct order of acid strength is.

Choose an answer

HIO4 > HBrO4 > HCIO4

HCIO4> HBrO4 > HIO4

HBrO4 > HIO4 > HCIO4

HBrO4 > HCIO4 > HIO4

Which of the following substance has been advocated as fuel of future.

Choose an answer

O2

N2

H2

H2O

Which of the following analytical technique is based on the emission of light radiation.

Choose an answer

Flame photometry

Atomic absorption spectrophotometry

Raman spectroscopy

Conductometry

The pKa of acetic acid is 4.74 which implies that.

Choose an answer

pH of 1N solution is 4.74

At pH 4.74 the dissociation of acetic acid is maximum

At pH 4.74 half of the acetic acid molecules are dissociated in the solution.

At pH 4.74 the dissociation of acetic acid is minimum.

The emission of light in a biological reaction in known as.

Choose an answer

Fluorencence

Phosphoreacence

Biolumineacence

Phtolysis

The chrome vanadium steels contain how many percent of vanadium.

Choose an answer

0.15 to 0.30

0.05 to 0.15

0.30 to 0.45

0.45 to 0.60

The oxidation number of Mn in KMnO4

Choose an answer

+5

+7

+4

+3

The one which is not a purine base

Choose an answer

Cytosine

Guanine

None of these

Adenine

Helium is used for

Choose an answer

The preservation of food

Filling electrical transformer

Pressuring agent in rockets

All of above

Which type of polymer the Nylon -06 is

Choose an answer

Polyamide

Polyester

Addition

Homopolymer

The atomic and ionic radii value on moving from left to right in the sereis.

Choose an answer

Increase

Decrease

Does not change

None of above

Setting of plaster of Paris volves.

Choose an answer

Oxidation with atmospheric oxygen

Combination with atmosphere CO2

Dehydration

Hydration to yield another hydrate

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