Start learning →

DSSSB TGT C9ionicformula — practice questions

Explore 3 free C9ionicformula questions in DSSSB TGT Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

Practise C9ionicformula with Quill →

C9ionicformula questions and exercises with answers

Showing questions 1–3 of 3.

As per your syllabus, the formula NH₄⁺ represents which kind of ion?Read the answer and worked solution →As per your syllabus, what is the VALENCY of magnesium ion (Mg²⁺)?Read the answer and worked solution →As per your syllabus, what is the CHEMICAL FORMULA for calcium chloride — using the cross-over rule?Read the answer and worked solution →

Worked practice questions

As per your syllabus, the formula NH₄⁺ represents which kind of ion?

  1. A neutral molecule
  2. A polyatomic CATION (ammonium ion) with valency 1
  3. An element
  4. A monoatomic anion
Show answer and solution

Correct answer: B. A polyatomic CATION (ammonium ion) with valency 1

As per your syllabus, A Table 9.1(b), NH₄⁺ is the ammonium ion (polyatomic cation, valency 1).

Open this question →

As per your syllabus, what is the VALENCY of magnesium ion (Mg²⁺)?

  1. 3
  2. 0
  3. 2
  4. 1
Show answer and solution

Correct answer: C. 2

As per your syllabus, Mg²⁺ has valency 2 (formed by losing 2 electrons).

Open this question →

As per your syllabus, what is the CHEMICAL FORMULA for calcium chloride — using the cross-over rule?

  1. CaCl₂ (Ca²⁺ + 2Cl⁻ — charges balance)
  2. Ca₂Cl
  3. CaCl
  4. Ca₂Cl₃
Show answer and solution

Correct answer: A. CaCl₂ (Ca²⁺ + 2Cl⁻ — charges balance)

As per your syllabus, Examples §9.5.2, calcium chloride = CaCl₂. Two Cl⁻ ions per Ca²⁺ for charge balance.

Open this question →

How to practise

  1. Choose a C9ionicformula question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Chemistry topics

Alcohols Phenols EthersAlkenesChemical EquilibriumClassification of Elements and PeriodicityOrganic Chemistryp-Block Elementsp-Block Elements (Groups 15-18)Polymers