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Naming of oxyanions and hydrated salts

52 questions on Naming of oxyanions and hydrated salts from the Basic Inorganic Nomenclature and Oxidation Number chapter: 10 NEET level, 21 JEE Main, 21 JEE Advanced. Each one opens with its answer and solution.

Practice this topic All Basic Inorganic Nomenclature and Oxidation Number topics

What is the IUPAC name of the anion NO2^-? NEET level
Which formula represents potassium permanganate? NEET level
Name the anion ClO^- using the hypo-/-ite/-ate/per- system. NEET level
What is the IUPAC (Stock notation) name of CuSO4.5H2O? NEET level
What is the name of Na2S2O3? NEET level
Using hydrogen- prefixes for acid salts, what is the IUPAC name of Na2HPO4? JEE Main level
Which is the formula of sodium peroxodisulfate (the anion has two S atoms joined through a peroxo O-O link)? JEE Main level
Which row names SCN^- and OCN^- respectively? JEE Main level
What is the Stock-notation name of FeSO4.7H2O? JEE Main level
Which is the formula of magnesium sulfate heptahydrate? JEE Main level
Assertion: The anions ClO^-, ClO2^-, ClO3^- and ClO4^- are named hypochlorite, chlorite, chlorate and perchlorate. Reason: The suffix -ite always indicates an o... JEE Main level
Match the anions (Column I) with names (Column II). Column I: P MnO4^2-, Q MnO4^-, R CrO4^2-, S Cr2O7^2-. Column II: 1 permanganate, 2 manganate, 3 chromate, 4 ... JEE Main level
Using the classical hypo-/-ite name of the anion H2PO2^- (P in +1), what is Ba(H2PO2)2 called? JEE Main level
What is the Stock-notation name of Fe(NO3)3.9H2O? JEE Main level
Select ALL correct name-formula pairs (IUPAC names). JEE Main level
Mohr's salt is named ammonium iron(II) sulfate hexahydrate. How many oxygen atoms are present in one formula unit? JEE Advanced level
A salt is named calcium dihydrogenphosphate monohydrate. How many hydrogen atoms are present in one formula unit (including water)? JEE Advanced level
A hydrated barium salt has the composition Ba(ClO_x)2.H2O in which chlorine is in the +5 state. Which option gives the correct formula and name? JEE Advanced level
Arrange the following anions by INCREASING oxidation number of the central atom: (i) hypochlorite, (ii) nitrite, (iii) chlorate, (iv) sulfate, (v) permanganate. JEE Advanced level
The acid salt obtained by neutralising two of the four acidic hydrogens of diphosphoric acid, H4P2O7, with NaOH has the formula Na2H2P2O7. Which option gives it... JEE Advanced level
A sodium salt is named sodium hexafluorosilicate. Which option gives its formula and the oxidation number of Si? JEE Advanced level
Select ALL correct hydrate names (Stock notation, Greek prefixes for water). JEE Advanced level
Select ALL rows in which the name of the oxyanion and the stated oxidation number of the central atom are BOTH correct. JEE Advanced level
Select ALL correct pairs of formula and name. JEE Advanced level
Select ALL correct classical (-ous/-ic) names. JEE Advanced level
Which ion is the sulfite ion? NEET level
The ion ClO3^- is called NEET level
Give the name of CuSO4.5H2O using Greek prefixes for the water of crystallisation. NEET level
Which is the name of KMnO4? NEET level
What is the name of NaOCl, which contains the ClO^- ion? NEET level
Potassium manganate has the formula K2MnO4. What is the oxidation number of Mn in it? JEE Main level
Name Na2S2O3.5H2O (photographic hypo). JEE Main level
Match the anion (Column I) with its name (Column II). Column I: P ClO^-; Q ClO2^-; R ClO3^-; S ClO4^-. Column II: 1 chlorate; 2 hypochlorite; 3 perchlorate; 4 c... JEE Main level
Assertion (A): In NaHCO3 the oxidation number of carbon is +4. Reason (R): NaHCO3 is named sodium hydrogencarbonate. Choose the correct option. JEE Main level
Which is the name of Na2HPO4? JEE Main level
Which is the formula of sodium dihydrogenphosphate? JEE Main level
Which option gives both the correct name of K2Cr2O7 and the oxidation number of Cr in its anion? JEE Main level
The ion S2O8^2- contains one O-O (peroxo) link. Its IUPAC name is JEE Main level
Washing soda is sodium carbonate decahydrate. Its formula is JEE Main level
How many oxygen atoms are present in one formula unit of copper(II) sulfate pentahydrate? JEE Main level
Barium hypophosphite is Ba(H2PO2)2. With Ba = +2, H = +1 and O = -2, the oxidation number of P is JEE Main level
Select ALL correct formula-name pairs for these anions. JEE Advanced level
Select ALL correct statements about hydrated salts named with Greek prefixes. JEE Advanced level
Select ALL anions that are named correctly AND have the central metal in the +6 state (O = -2). JEE Advanced level
Peroxo links have O = -1. Select ALL correct statements. JEE Advanced level
Iron(II) sulfate heptahydrate has how many oxygen atoms in one formula unit? JEE Advanced level
Assertion (A): The average oxidation number of S in S2O3^2- is +2. Reason (R): Both S atoms in thiosulfate have the same oxidation number of +2. Choose the corr... JEE Advanced level
Deduce the formula of ammonium dichromate and take N = -3 (as NH4+) and O = -2. What is the sum of the oxidation numbers of all N atoms and all Cr atoms in one ... JEE Advanced level
Arrange the following in DECREASING order of the oxidation number of chlorine: chlorite, perchlorate, hypochlorite, chlorate. JEE Advanced level
Potassium manganate (green) in acid disproportionates to permanganate and a brown solid. Which option gives the oxidation numbers of Mn in manganate, permangana... JEE Advanced level
Sodium hexafluorosilicate contains the SiF6^2- ion. Which option gives its correct formula, the oxidation number of Si and the total number of atoms per formula... JEE Advanced level
Red lead is described as lead(II) plumbate(IV), Pb2[PbO4] = Pb3O4 (O = -2 throughout). Which option is correct? JEE Advanced level