Science Quiz Test (Atomic Structure) 29 April

The average kinetic energy of the molecules of an ideal gas is directly proportional to

a) Velocity of Molecules

b) Mass of Molecules

c) Absolute temperature of the gas,

d) Temperature

Atoms of the same element or of different elements can join together to form a/an.........

a) Molecule

b) Electron

c) Proton

d) Ion

……………..is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration. a) Diffusion

b) Osmosis

c) Active Transport

d) Passiv...

Isomerism caused by the different arrangements of atoms or groups in space is called as

a) Structural isomerism

b) Metamerism

c) Tautomerism

d) Stereo isomerism...

Atoms of different elements with different atomic numbers, having same mass number is known as _____...

a) Isobars

b) Isohalines

c) Isotopes

d) Ion

……………. are atoms having the same mass number but different atomic numbers

a) Isohyets

b) Isotopes

c) Isotherms

d) Isobars...

When atoms bond together chemically, ___________ are formed

a) Elements

b) Molecules

c) Both Elements and Alloys

(d) Alloys

The residual attractive or repulsive forces between molecules or atomic groups that do not arise from a covalent bond, or ionic bonds is called …………… a) Neutral Bond

b) Non Polar Bond

c) Electro...

d) Van der Walls bond...

Aromatic hydrocarbons contain at least how many benzene rings in their molecules?

a) four

b) three

c) two

d) one

Which of the following molecules is joined by a double covalent bond?

a) Cl2

b) O2

c) N2

d) He2...