Tamil Nadu (English Medium) Std 9 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
Among the following which one is a mono atomic cation ?

(A) Sodium ion	(B) Fluoride ion
(C) Sulphate ion	(D) Calcium ion

Question-2
Among the following which is a monovalent poly atomic ion ?

(A) HSO₄^-	(B) ClO^-
(C) a and b	(D) SO₃^2-

Question-3
The acid radical present in sodium sulphate compound is :

(A) Sodium	(B) Sulphate
(C) Water	(D) Sodium hydroxide

Question-4
2 Fe + 3 Cl₂ → 2 FeCl₃ , Name the reactant ?

(A) Fe and Cl₂	(B) FeCl₃ and Cl
(C) 3 Cl and 2 Fe	(D) None of the above

Question-5
Among the following identify the information which are not conveyed by chemical equations ?

(A) Isotopes	(B) Number of moles
(C) Concentration	(D) a and c

Question-6
Name the cation present in NaCl ?

(A) Na⁺	(B) Cl^-
(C) NaCl	(D) 2 Na

Question-7
Pick out the correct chemical formula of sodium nitrate ?

(A) Na₂CO₃	(B) NaNO₃
(C) 2 NaCO₃	(D) Na₂(CO₃)₂

Question-8
Non-metals usually forms :

(A) Cations	(B) Radicals
(C) Polyvalent cations	(D) Anions

Question-9
2 SO₂ + O₂ → :

(A) 2 SO₄	(B) 2 SO₃
(C) SO₄	(D) 2 SO

Question-10
Fe + Cl₂ → FeCl₃ . How can we balance Cl atom ?

(A) 2 Fe + 3 Cl₂ → FeCl₃	(B) Fe₂ + Cl₂ → FeCl₃
(C) 2 Fe + Cl → 2 FeCl	(D) Fe + 3 Cl₂ → 2 FeCl₃

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Std 9

Tamil Nadu (English Medium)

Practice in Related Chapters
Is Matter around us Pure
Atomic Structure
Chemical Bonds
Chemical Equation
Periodic Classification of Elements