1st Year Chemistry MCQS with Answers Chapter 5

Anode rays were discovered by

Goldstein

J.J. Thomson

Rutherford

J. Stoney

Quantum number value for 2p sub shell are

n = 2, l = 0

n = 2, I = 1

n = 1, l =1

n = 1, l = 0

The nature of positive rays depends on

All of the above

The nature of electrode

The nature of discharge tube

The nature of residual gas

The line of the balmer series in the visible region of the spectrum, but the limiting line, in the series lies in

I.R region

Visible region

U.V. region

X-Ray region

If uncertainty position of an electron is zero, the uncertainty in its momentum would be

Both a and b

None of these

Zero

Infinite

The azimuthal quantum number / = 2, then M(Magnetic quantum number) can have values as

+1, -1

+2, +1, 0,1, -1, 2

+1, 0, -1

+3, +2, +1, 0, 1, -2, -3

Orbitals having same energy are called

Degenerate orbitals

Hybird orbitals

Valence orbitals

D-orbitals