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Chemistry

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1511 MCQs

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oost your exam preparation with our Chemistry MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

A constitutive property

B additive property

C colligative property

D intrinsic property

A 1.008 x 10-3

B 5.5 x 10-4

C 1.84 x 10-4

D 1.673 x 10-3

A 1 x 10-1

B 1 x 10-14

C 1 x 10-7

D 1

A whole amount of reactant does not change into product

B chemical equilibrium is established

C a catalyst changes the direction of reaction

D rate of forward reaction decreases as reaction proceeds

A VSEPR

B VBT

C MOT

D none of the above

A Be+2H2O?Be (OH)2+H2

B Be+H2O?Be (OH)2+H2

C Be+H2O?[Be (OH)4]+2+H2

D no reaction

A copper

B ice

C diamond

D graphite

A sodium

B diamond

C graphite

D magnesium

A Teflon

B asbestos

C saran

D acrylic

A Electrons fill orbitals with parallel spins until all the orbitals of the same energy are half filled then they go into sub-shells with anti-parallel (opposite) spin.

B The electrons in the same atom cannot have the same four quantum numbers

C There is maximum of two electrons is an orbital.

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The use of antifreeze in the automobile radiator is an important application of__________________?

1 mole of electron has mass in microgram_________________?

A solution has pH = 0 its H+ ion concentration is__________________?

Which of the following is not characteristics of reversible reaction__________________?

Which of the following theories is superior to others__________________?

The balanced chemical equation for the reaction which occurs when Be is added to water is____________?

Which of the solid does not contain covalent bond__________________?

The hardest of the following solids is__________________?

Which of the following is mineral fiber ?

Which statement is consistent with Hunds rule ?