Science Quiz Test (Atomic Structure) 29 April

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

a) Isohyets

b) Isotopes

c) Isotherms

d) Isobars...

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...

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...

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

a) Molecule

b) Electron

c) Proton

d) Ion

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

a) Cl2

b) O2

c) N2

d) He2...

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

a) Isobars

b) Isohalines

c) Isotopes

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...

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

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

a) four

b) three

c) two

d) one