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State if the following element or radical is divalent?
Bisulphite
Concept: undefined >> undefined
State if the following element or radical is divalent?
Dichromate
Concept: undefined >> undefined
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State if the following element or radical is divalent?
Permanganate
Concept: undefined >> undefined
Match the names of ions and radicals from 1 to 10 with their correct answer from A to Q.
| Column A | Column B |
| 1. Hypochlorite | A: Hg2+ |
| 2. Permanganate | B: \[\ce{MnO_4^1-}\] |
| 3. Plumbous | C: Sn4+ |
| 4. Zincate | D: Pb2+ |
| 5. Nitride | E: Sn2+ |
| 6. Mercuric | F: Pb4+ |
| 7. Stannic | G: \[\ce{SO_3^2-}\] |
| 8. Nitrite | H: N3- |
| 9. Sulphite | I: \[\ce{NO_2^1-}\] |
| 10. Dichromate | J: \[\ce{MnO_4^2-}\] |
| K: Hg1+ | |
| L: \[\ce{SO_4^2-}\] | |
| M: CIO1- | |
| N: \[\ce{ZnO_2^2-}\] | |
| O: \[\ce{Cr_2O_7^2-}\] | |
| P: \[\ce{CrO_4^2-}\] | |
| Q: \[\ce{ClO_3^1-}\] |
Concept: undefined >> undefined
Give the formula and valency of:
| Aluminate | ______ | ______ |
Concept: undefined >> undefined
Give the formula and valency of:
chromate ………….…….. .
Concept: undefined >> undefined
Give the formula and valency of:
aluminium ………………. .
Concept: undefined >> undefined
Give the formula and valency of:
cupric ………………… .
Concept: undefined >> undefined
Write chemical formula of the sulphate of Aluminium, Ammonium and Zinc.
Concept: undefined >> undefined
Complete the following statement by selecting the correct option :
The correct formula of aluminium oxide is
Concept: undefined >> undefined
Fill in the blank:
Formula of iron (ill) carbonate is _____ .
Concept: undefined >> undefined
Correct the following statement:
A molecular formula represents an element.
Concept: undefined >> undefined
Correct the following statement:
Molecular formula of water is H2O2
Concept: undefined >> undefined
Correct the following statement:
Formula of iron (lll) oxide is FeO.
Concept: undefined >> undefined
Give the empirical formula of : Benzene C6H6
Concept: undefined >> undefined
Give the empirical formula of Glucose C6H12O6 .
Concept: undefined >> undefined
Give the empirical formula of Acetylene C2H2
Concept: undefined >> undefined
Give the empirical formula of Acitic Acid CH3COOH.
Concept: undefined >> undefined
State any three methods of crystallisation.
Concept: undefined >> undefined
