Chemistry Objective Questions and Answers: Basic Inorganic Nomenclature
Explore reliable objective questions for Basic Inorganic Nomenclature tailored for JEE learners. Utilizing these Chemistry multiple-choice formats ensures thorough preparation and strengthens problem-solving speed for upcoming school assessments.
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Multiple Choice Questions
(a) 8
(b) 10
(c) 9
(d) 7
Show Answer & Explanation
Answer: (c) 9
Explanation:
1. Only \( \ce{Na3BO3} \) is mis-named (it is sodium borate, since boric acid is an -ic acid). The other nine are correct.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
(a) Fe shows only one oxidation state
(b) The formula of aluminium arsenide is AlAs, and Mn is +7 in \( \ce{KMnO4} \)
(c) F is -1 in all its compounds and elemental F2 is also -1
(d) The formula of aluminium arsenide is \( \ce{Al3As} \)
Show Answer & Explanation
Answer: (b) The formula of aluminium arsenide is AlAs, and Mn is +7 in \( \ce{KMnO4} \)
Explanation:
1. Al is +3 and arsenide is \( \ce{As^3-} \) giving AlAs; K + Mn - 8 = 0 gives Mn = +7. Fe shows +2 and +3, and elemental F2 is 0.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
(a) \( \ce{KO3} \) is potassium ozonide
(b) \( \ce{H3O^+} \) is hydronium
(c) \( \ce{NO^+} \) is nitrosonium
(d) \( \ce{NO2^+} \) is nitrosonium
Show Answer & Explanation
Answer: (d) \( \ce{NO2^+} \) is nitrosonium
Explanation:
1. \( \ce{NO2^+} \) is nitronium; nitrosonium is \( \ce{NO^+} \).
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
(a) sodium auride
(b) sodium aurite
(c) sodium aurate
(d) sodium gold
Show Answer & Explanation
Answer: (a) sodium auride
Explanation:
1. Gold is the more electronegative element here and forms the anionic partner \( \ce{Au^-} \) (auride).
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
(a) plumbite
(b) plumbide
(c) plumbate
(d) plumbous
Show Answer & Explanation
Answer: (c) plumbate
Explanation:
1. \( \ce{PbO2^2-} \) is plumbite; \( \ce{PbO3^2-} \) with more oxygen is plumbate.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
(a) \( \ce{H2CO3} \) is called carbonous acid
(b) \( \ce{HClO2} \) is perchloric acid
(c) \( \ce{H2SO5} \) is peroxodisulphuric acid
(d) \( \ce{H2N2O2} \) is hyponitrous acid
Show Answer & Explanation
Answer: (d) \( \ce{H2N2O2} \) is hyponitrous acid
Explanation:
1. \( \ce{H2CO3} \) is carbonic, \( \ce{HClO2} \) chlorous and \( \ce{H2SO5} \) peroxomonosulphuric acid.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
(a) \( \ce{H4Si2O7} \)
(b) \( \ce{H4P2O7} \)
(c) \( \ce{H3BO3} \)
(d) \( \ce{HPO3} \)
Show Answer & Explanation
Answer: (c) \( \ce{H3BO3} \)
Explanation:
1. \( \ce{H3BO3} \) is orthoboric acid; \( \ce{H4Si2O7} \) and \( \ce{H4P2O7} \) are pyro acids and \( \ce{HPO3} \) is a meta acid.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Prefixes ortho, meta and pyro describe the water content of the acid; per/peroxo means an O-O link is present.
(a) \( \ce{Sr(PO3)2} \)
(b) \( \ce{SrHPO3} \)
(c) \( \ce{Sr3(PO4)2} \)
(d) \( \ce{Sr2P2O7} \)
Show Answer & Explanation
Answer: (a) \( \ce{Sr(PO3)2} \)
Explanation:
1. Metaphosphate is \( \ce{PO3^-} \), Sr is +2, so \( \ce{Sr(PO3)2} \).
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Write the cation first, put the charges as subscripts crosswise, then cancel any common factor.
(a) \( \ce{Ni2Se2O7} \)
(b) \( \ce{NiSe2O7} \)
(c) \( \ce{Ni2Se2O5} \)
(d) \( \ce{NiSe2O5} \)
Show Answer & Explanation
Answer: (b) \( \ce{NiSe2O7} \)
Explanation:
1. Pyroselenate is \( \ce{Se2O7^2-} \) (like pyrosulphate), so Ni(II) gives \( \ce{NiSe2O7} \).
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Write the cation first, put the charges as subscripts crosswise, then cancel any common factor.
(a) \( \ce{Pb2(WO4)3} \)
(b) \( \ce{Pb3(WO4)2} \)
(c) \( \ce{Pb3(WO4)4} \)
(d) \( \ce{PbWO4} \)
Show Answer & Explanation
Answer: (d) \( \ce{PbWO4} \)
Explanation:
1. Tungstate is \( \ce{WO4^2-} \) and lead is \( \ce{Pb^2+} \) (from lead phosphate), so \( \ce{PbWO4} \).
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Write the cation first, put the charges as subscripts crosswise, then cancel any common factor.
(a) \( \ce{Hg2(N3)2} \)
(b) \( \ce{HgN3} \)
(c) \( \ce{Hg2N3} \)
(d) \( \ce{Hg(N3)2} \)
Show Answer & Explanation
Answer: (a) \( \ce{Hg2(N3)2} \)
Explanation:
1. Mercurous is \( \ce{Hg2^2+} \) and azide is \( \ce{N3^-} \).
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Write the cation first, put the charges as subscripts crosswise, then cancel any common factor.
(a) \( \ce{CH3-O-S-C2H5} \)
(b) \( \ce{C2H5-O-CH3} \)
(c) \( \ce{C2H5-O-CH2SH} \)
(d) \( \ce{CH3-S-C2H5} \)
Show Answer & Explanation
Answer: (d) \( \ce{CH3-S-C2H5} \)
Explanation:
1. Thio- means oxygen replaced by sulphur, so -O- becomes -S-.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
(a) \( \ce{HNO3} \)
(b) \( \ce{HN3} \)
(c) \( \ce{HNO2} \)
(d) \( \ce{NH3} \)
Show Answer & Explanation
Answer: (b) \( \ce{HN3} \)
Explanation:
1. \( \ce{HN3} \) (hydrazoic acid) has no oxygen; \( \ce{HNO3} \) and \( \ce{HNO2} \) are oxyacids and \( \ce{NH3} \) is not acidic.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Prefixes ortho, meta and pyro describe the water content of the acid; per/peroxo means an O-O link is present.
(a) \( \ce{ClO3} \)
(b) \( \ce{Cl2O5} \)
(c) \( \ce{Cl2O7} \)
(d) \( \ce{ClO2} \)
Show Answer & Explanation
Answer: (c) \( \ce{Cl2O7} \)
Explanation:
1. \( \ce{2HClO4} \) - \( \ce{H2O} \) = \( \ce{Cl2O7} \).
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Prefixes ortho, meta and pyro describe the water content of the acid; per/peroxo means an O-O link is present.
(a) sodium metachromite
(b) sodium metachromate
(c) sodium orthochromite
(d) sodium orthochromate
Show Answer & Explanation
Answer: (a) sodium metachromite
Explanation:
1. Cr is +3 (the -ite oxidation level) and \( \ce{CrO2^-} \) comes from \( \ce{HCrO2} \) (meta form).
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
(a) \( \ce{H2SO4} \)
(b) \( \ce{HClO4} \)
(c) \( \ce{H3PO4} \)
(d) \( \ce{H3BO3} \)
Show Answer & Explanation
Answer: (b) \( \ce{HClO4} \)
Explanation:
1. Cl, N and C do not form pyro acids, so \( \ce{HClO4} \) gives only the oxide \( \ce{Cl2O7} \).
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Prefixes ortho, meta and pyro describe the water content of the acid; per/peroxo means an O-O link is present.
(a) \( \ce{RbGaO2} \)
(b) \( \ce{Ru2GeO2} \)
(c) \( \ce{Rb3GaO3} \)
(d) \( \ce{Ru2GaO3} \)
Show Answer & Explanation
Answer: (a) \( \ce{RbGaO2} \)
Explanation:
1. Metagallate is \( \ce{GaO2^-} \) and rubidium is \( \ce{Rb^+} \).
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Write the cation first, put the charges as subscripts crosswise, then cancel any common factor.
(a) \( \ce{H2SO3} \) and \( \ce{HNO2} \)
(b) \( \ce{HNO2} \) and \( \ce{HBO2} \)
(c) \( \ce{H2SO4} \) and \( \ce{HClO4} \)
(d) \( \ce{H2SO3} \) and \( \ce{HClO2} \)
Show Answer & Explanation
Answer: (c) \( \ce{H2SO4} \) and \( \ce{HClO4} \)
Explanation:
1. Sulphuric and perchloric acids end in -ic; sulphurous, nitrous, chlorous acids end in -ous.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
(a) \( \ce{H2CO3} \) and \( \ce{H2SO4} \)
(b) \( \ce{HBO2} \) and \( \ce{HNO3} \)
(c) \( \ce{HClO4} \) and \( \ce{HNO3} \)
(d) \( \ce{HNO2} \) and \( \ce{H2SO3} \)
Show Answer & Explanation
Answer: (d) \( \ce{HNO2} \) and \( \ce{H2SO3} \)
Explanation:
1. Nitrous and sulphurous acids; carbonic and metaboric acids are -ic.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
(a) \( \ce{H3PO4} \)
(b) \( \ce{HPO3} \)
(c) \( \ce{H4P2O7} \)
(d) \( \ce{H3PO3} \)
Show Answer & Explanation
Answer: (b) \( \ce{HPO3} \)
Explanation:
1. \( \ce{H3PO4} \) - \( \ce{H2O} \) = \( \ce{HPO3} \) (metaphosphoric acid).
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Prefixes ortho, meta and pyro describe the water content of the acid; per/peroxo means an O-O link is present.
(a) \( \ce{As2O3} \) and \( \ce{Sb2O5} \)
(b) \( \ce{As2O3} \) and \( \ce{S2O7^2-} \)
(c) \( \ce{S2O7^2-} \) and \( \ce{H4As2O7} \)
(d) \( \ce{Sb2O5} \) and \( \ce{H4As2O7} \)
Show Answer & Explanation
Answer: (c) \( \ce{S2O7^2-} \) and \( \ce{H4As2O7} \)
Explanation:
1. \( \ce{S2O7^2-} \) is pyrosulphate and \( \ce{H4As2O7} \) is pyroarsenic acid; the oxides are not pyro compounds.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Prefixes ortho, meta and pyro describe the water content of the acid; per/peroxo means an O-O link is present.
(a) \( \ce{CaHS} \)
(b) \( \ce{Ca(HS)2} \)
(c) \( \ce{CaS2} \)
(d) \( \ce{Ca2HS} \)
Show Answer & Explanation
Answer: (b) \( \ce{Ca(HS)2} \)
Explanation:
1. Hydrogen sulphide ion is \( \ce{HS^-} \).
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Write the cation first, put the charges as subscripts crosswise, then cancel any common factor.
(a) calcium chlorite
(b) calcium chloride
(c) calcium perchlorate
(d) calcium hypochlorite
Show Answer & Explanation
Answer: (d) calcium hypochlorite
Explanation:
1. \( \ce{OCl^-} \) is hypochlorite.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
(a) sodium acetate
(b) sodium oxalate
(c) sodium carbonate
(d) sodium formate
Show Answer & Explanation
Answer: (a) sodium acetate
Explanation:
1. \( \ce{CH3COO^-} \) is acetate.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
(a) sodium cyanide
(b) sodium isocyanide
(c) sodium cyanate
(d) sodium thiocyanate
Show Answer & Explanation
Answer: (c) sodium cyanate
Explanation:
1. \( \ce{OCN^-} \) is cyanate.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
(a) magnesium sulphate
(b) magnesium hydrogensulphite
(c) magnesium sulphite
(d) magnesium hydrogensulphate
Show Answer & Explanation
Answer: (d) magnesium hydrogensulphate
Explanation:
1. \( \ce{HSO4^-} \) is the hydrogensulphate (bisulphate) ion.
2. Only this option agrees with the working above, so it is the correct choice.
Teacher's Note:
1. Learn the suffix pattern first: -ic acid gives -ate, -ous acid gives -ite, and hypo-/per- prefixes carry over to the anion.
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Practice MCQs for JEE Chemistry Basic Inorganic Nomenclature
About Basic Inorganic Nomenclature MCQs for JEE Chemistry
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FAQs
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