Default Title

Questions

Question (41)

QN007451

Which covalent compound is liquid at room temperature?

(A) Carbon tetrachloride
(B) Sodium chloride
(C) Calcium oxide
(D) Magnesium chloride

Correct Answer: A

Explanation:

Link:

Report Error

Question (42)

QN007452

Which micro-component encourages reflective scientific thinking?

(A) Appendix
(B) Pause and Ponder
(C) Index
(D) Summary Table

Correct Answer: B

Explanation:

Link:

Report Error

Question (43)

QN007453

Which Indian scientist mentioned in the chapter is linked with atomic research?

(A) Raja Ramanna
(B) Aryabhata
(C) C. V. Raman
(D) S. N. Bose

Correct Answer: A

Explanation:

Link:

Report Error

Question (44)

QN007454

Which statement is true for ionic compounds?

(A) They are poor conductors in molten state
(B) They have low boiling points
(C) They conduct electricity in aqueous solution
(D) They are made of neutral molecules only

Correct Answer: C

Explanation:

Link:

Report Error

Question (45)

QN007455

Which compound is least likely to conduct electricity in any state?

(A) Sodium chloride
(B) Magnesium chloride
(C) Carbon dioxide
(D) Potassium bromide

Correct Answer: C

Explanation:

Link:

Report Error

Question (46)

QN007456

The hardness of ionic compounds is due to:

(A) Weak molecular attraction
(B) Strong electrostatic forces
(C) Presence of gases
(D) Metallic bonding

Correct Answer: B

Explanation:

Link:

Report Error

Question (47)

QN007457

Which compound has molecules rather than ions?

(A) NaCl
(B) MgO
(C) CO₂
(D) CaCl₂

Correct Answer: C

Explanation:

Link:

Report Error

Question (48)

QN007458

Ionic compounds are generally soluble in:

(A) Petrol
(B) Benzene
(C) Water
(D) Kerosene

Correct Answer: C

Explanation:

Link:

Report Error

Question (49)

QN007459

Covalent compounds usually fail to conduct electricity because:

(A) They lack free ions
(B) They contain metals
(C) Their molecules are large
(D) They are always gases

Correct Answer: A

Explanation:

Link:

Report Error

Excel With Tutors

Learn At Your Own Pace... Because, Everyone's Pace of Learning is Different...

ExcelWithTutors

A unit of Innovexcel Edu Solution LLP.

SWIFT, RELIABLE & CONVENIENT..

Social Media

Corporate Office :
Bharat Impact Building, C-26, Sector - 59, Noida, Uttar Pradesh - 201301, India

For Student

For Tutors

OUR POLICY

Excel With Tutors : A Perfect Tutoring Platform & Repository of Learning Materials. Matches the Best Tutor as Per Your Requirement.