A. Acetic acid

B. Propanoic acid

D. Butanoic acid

A. Liquid

B. Volatile solid

C. All

A. (C2H5)2 Pb

B. all of the above

C. PbCl2

A. Formula mass

B. Molecular formula

D. Molecular mass

A. H2SO4

B. HNO3

D. none of the above

A. Nature of reactants

B. Nature of product

D. Nature of crucible

A. 30%

B. 80%

D. 20%

A. Both

C. A

D. Neither

A. ZnS

B. PbS

D. FeS2

A. yellow

B. pink

C. black

A. molecules become more disordered.

C. molecules move more frequently.

D. intermolecular forces become weaker.

A. All

C. Ammonia

D. Dissolved oxygen

A. fats

B. iodine

D. resins

A. H+ H- H

C. Li+1 Na+1 K+1

D. F Cl Br

B. Rubber sheet

C. Water repellent film

D. Lubricant

A. 300

B. 280

C. 54

A. covalent network solids

B. ionic substances

D. molecular solids

A. 1-mole molecules of water

B. 1-gram molecule of water

D. 3-gram atoms

B. Third order reaction

C. Second order reaction

D. First order reaction

B. 0?C

C. 273.16K

D. ?273.16 K

A. 22.4 dm3

C. 2.24 dm3

D. 1.12 cm3

A. 0.75

B. 1

C. 0.25

B. KCI

C. Na2CO3. 10H2O

D. NaCI

A. for denaturing of ethyl alcohol

B. an anti freezing agent

D. a solvent

A. additive property

C. constitutive property

D. intrinsic property

A. sp2 sp

B. sp3 sp2

C. sp2 sp

B. Ethylidine dichloride

C. Diviny1 acetylene

D. 1 3 3 trichloro butane

A. Atmoic masses are average masses of isotopes

B. Atomic masses are average masses of isobars

D. Mass of an atom itself is in fraction

A. Alkanes

B. Esters

D. Alkynes

A. X-rays

B. ? particle

D. High energy electron beam

B. All of the above

C. Atomic number

D. Electronic configuration

B. 300

C. 280

D. 154

B. mass of particles

C. number of particles

D. volume of particles

A. qp = qv

C. qp < qv

D. qp = qv / 2

A. Cobalt

C. Manganese

D. Chromium

A. 6.022 x 1023 atoms of oxygen

B. 22-gram electrons

C. 6.022 x 1023 atms of carbon

B. lead chamber process

C. haber process

D. decons process

B. position in the periodic table

C. arrangement of electrons in orbitals

D. properties depend upon mass

A. Uni-positive

B. Di-positive

D. Di-negative

A. Covalent crystal

C. Any type of crystal

D. Ionic crystal

A. Butanone

B. Ethanal

C. Acetone

A. Mg > Sr

B. CI > 1

D. Lu > Ce

B. monomer

C. allotropes

D. polymer

A. 1.0 x 10-10 mol dm-3

B. 2.0 x 10-10 mol dm-3

C. 1.0 x 10-5 mol dm-3

B. High electrical conductivity

C. Low vapour pressure

D. High boiling points

A. Similar physical properties

B. Similar chemical properties

C. Both A and b

A. Atomicity

B. Shape of molecule

D. Difficult to predict

B. Molecules of hydrogen chloride gas

C. Molecules of water in liquid state

D. Atoms of helium in gaseous state at high temperature

A. nb correct for the volume occupied by gas molecules.

B. all of the above statements are correct.

C. n2a/v correct for the intermolecular forces.

B. Show isomerism

C. Show tetravalency

D. Can form multiple bonds