Loading practice questions

A focused practice platform for competitive-exam MCQs, subject wise, topic wise practice, and current affairs revision.

Exams

SSC CGL
UPSC CSE PRELIMS
IBPS PO
RRB NTPC
CDS

Subjects

Mathematics
Physics
General Knowledge
English
Reasoning

Resources

Current Affairs
Search MCQs
Practice Sets

Company

About Us
Contact
Privacy Policy
Terms of Use
Disclaimer
Copyright

Practice library for exams, subjects, and daily revision. For learning purposes only.

© 2026 ObjectiveMcq.ComAll rights reserved

Chemical Formulae : Class 9 Science MCQ Practice Questions & Answers (Telugu) - ObjectiveMcq

Class 9 Science Practice

Browse

Topics

Agriculture
Biology
Chemistry
Physics
Science

PracticeClass 9 ScienceChemistryChemical Formulae

Chemical Formulae in Class 9 Science : Practice MCQ Questions & Answers with Explanations

4 practice sets · Page 1 of 1

Class 9 ScienceMediumChemistryChemical FormulaeIonic Compounds

1.

What is the chemical formula for calcium chloride?

A

CaCl

B

Ca₂Cl₂

C

Ca₂Cl

D

CaCl₂

Correct Answer:

D — CaCl₂

Explanation:

Calcium chloride contains one calcium atom and two chlorine atoms.

Class 9 ScienceMediumChemistryChemical FormulaeEmpirical Formula

2.

What is the empirical formula of glucose (C₆H₁₂O₆)?

A

C₆H₁₂O₆

B

CH₂O

C

CH₃O

D

C₁₂H₂O₁₂

Correct Answer:

B — CH₂O

Explanation:

The empirical formula represents the simplest whole-number ratio of atoms in a compound.

Class 9 ScienceMediumScience ChemistryChemical Formulae

3.

What is the chemical formula of water?

A

CO₂

B

O₂

C

H₂O

D

H₂O₂

Correct Answer:

C — H₂O

Explanation:

Water has the chemical formula H₂O, consisting of two hydrogen atoms and one oxygen atom.

Class 9 ScienceMediumChemistryChemical Formulae

4.

What is the formula of sodium chloride?

A

Na₂Cl

B

NaCl₂

C

NaCl

D

Na₂Cl₂

Correct Answer:

C — NaCl

Explanation:

Sodium chloride has the chemical formula NaCl.