Question # 1

The experimental relationship between rate of the reaction and concentration of the reactants is called.

Choose an answer

Rate law

Law of mass action

Le-Chatelier's principle

Rate constant

Which of the following statement represent advantages of sanitary Landfill

Choose an answer

Economical method

Low initial investment

Flexible daily capacity

All above

Which of the following cells is used to produce electricity from chemical reaction

Choose an answer

Electroytic cell

Galvanic cell

Voltaic cell

Fuel cell

Both C and D

Which of the following substance is released into environment in the nuclear power plants.

Choose an answer

Iodine -131

Argon - 41

Sr-90

Cs- 137

All above

Which of the following trihalides of nitrogen behaves as the weakest base.

Choose an answer

NF3

NCl3

NBr3

NI3

In normal mode of operations of liquid liquid partition, a polar stationary phase is used with a non polar mobile phase Which of the following solvent is used as mobile phase.

Choose an answer

Ethanol

Propanol

Butanol

Hexane

Thermogravimetic analysis has application is which of the following fields

Choose an answer

Gravimetric analysis

Discovery of new methods ofseparation

Determination of purity and thermal stability

All above

The process of identifying the component present in a sample is called.

Choose an answer

Quantitative analysis

Qualitative analysis

Volumetric analysis

Gravimetric analysis

Solid sodium chloride does not conduct electricity be cause.

Choose an answer

In solid NaCl, no ions are present

Solid NaCl is covalent in nature

In solid NaCl, there is no mobility of ions

In solid NaCl, there are no electrons.

The number of moles of solute dissolved in 1000 gram of the solvent is called

Choose an answer

Formality

Molality

Molarity

Mole fraction

Duralumin is an alloy of.

Choose an answer

Mg + AI

Ai+ Mg+Mn

Mg + Ai + Cu

Mg + Ai + Cu + Mn

Which of the following molecule does not contain the covalent bond between similar atoms.

Choose an answer

N2H4

F2O2

H2F2

H2O2

In a system of designating wrought aluminum alloys a sour digit number is used what does the first digit indicate.

Choose an answer

The purity of aluminum

The identity of the alloy

The alloy group

All of above

Which of the following statement is not correct with respect to harmful effects of ground water pollution.

Choose an answer

It causes lungs cancer

It causes jaundice

It damages crops

It helps to prevent epidermises

The maximum absorption in [Ti(OH)2)6 3+ take place at wavelength of.

Choose an answer

6000 A^o

10000 A^o

4000 A^o

5000 A^o

Which of the following technique is used to separate substance of high molecular weight of different charges.

Choose an answer

Dialysis

Electrophoresis

Solvent

None of the abvoe

The state of hybridization of Xe in Xe F6 are

Choose an answer

sp2

sp3

sp3 d

dsp3

The element with atomic numebr greater than 100 are known as

Choose an answer

Trans uranium elements

Trans fermium elements

Actinides

Lanthanides

Metal crystallize is system having co ordination number

Choose an answer

8

12

14

any one of above

Which ionization Potential in the following equations involves the greatest amount of energy.

Choose an answer

Na = Na+ + e

K = K+ +e

C2+ = C3+ +e

Ca+ = Ca2+ + e

Which of the following metal acts as pollutant.

Choose an answer

Hg

Pb

Zn

Ni

All above

Which of the following is not an alum.

Choose an answer

KAI (SO4)3 12 H2O

NaAI (SO4)2 12 H2O

NH4Fe (SO4)2 12H2O

FeAl (SO4)2 . 12 H2O

Consider to violet colored compund.[Cr(OH)2)6 Cl3 and the yellow compound. [Cr(NH3)6]C;2 which of the following statements is false.

Choose an answer

Both chromium metal ions are paramagnetic with 3 unpaired electrons.

[Cr(NH3)6)3+ is calculated directly form the energy of yellow light

For [Cr(OH)2)6]3+ is less than for [Cr(NH3)6]3+

The two complexes absorb their complementary colors.

The decreasing order of the second ionization energies of K, Ca and Ba is

Choose an answer

K > Ca > Ba

Ca > Ba > K

Ba > K > Ca

K > Ba > Ca

In a one -component system the maximum number of phase that can consist in equilibrium is.

Choose an answer

1

2

3

4

The speed of a chemical reaction

Choose an answer

Is constant no matter what the temperature is.

Is independent of the amount of contact surface of a solid involved

Between gases should is all cases be extremely repid because the average kinetic energy of the molecules is great

Between ions in aqueous solution is extremely rapid because there are no bonds that need to be broken

B.P of heavy water is

Choose an answer

equal to that of ordinary water

greater than that of ordinary water

Less than that of ordinary water

equal to that of distilled water

The isotonic nucleotide X and Y have mass numbers 35 and 37 respectively if the atomic number of X is 17 the atomic number of Y will be.

Choose an answer

15

17

19

18

The law of triads is applicable to

Choose an answer

Lithium, beryllium, boron

Fluorine, chlorine, bromine

Chlorine, bromine, iodine

Sodium, potassium, Rubidium

Which one of the following sets of elements has the strongest tendency to form negative ions in gaseous state.

Choose an answer

NA, Mg, Al

Ca, V, Cr

N , O, F

Ga, ln, tI

Which of the following methods is used in qualitativ eanalysis.

Choose an answer

Physical method

Chemical method

Instrumental method

All 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