Atomic structure and bonding - Jamb Chemistry Past Questions and Answers

Question 161:

• JAMB 2013

Which of the following molecules is held together by hydrogen bond?

A. CH₄
B. HBr
C. H₂SO₄
D. HF

Question 162:

• JAMB 2013

The bond formed between two elements with electron configurations 1s² 2s² 2p⁶ 3s² and 1s² 2s² 2p⁴ is

A. Metallic
B. Covalent
C. Dative
D. Ionic

Question 163:

• JAMB 2013

Calculate the volume in cm³ of oxygen evolved as s.t.p. when a current of 5 A is passed through acidified water for 193s
{F = 96500 Cmol^-1, Molar volume of a gas at s.t.p. = 22.4 dm³}

A. 224.000 dm³
B. 0.056 dm³
C. 0.224 dm³
D. 56.000 dm³

Question 164:

• JAMB 2013

How many unpaired electron are in the p-orbitals of a fluorine atom?

A. 3
B. \( 0 \)
C. 1
D. 2

Question 165:

• JAMB 2013

The radioactive emission with the least ionization power is

A. \( \alpha - particles \)
B. X-rays
C. \( \gamma -rays \)
D. \( \beta - rays \)