Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Redox Reactions

Short Answer Type

11.

Write formulas for the following compounds:
(a) Mercury (II) chloride
(b) Nickel (II) sulphate
(c) Tin (IV) oxide
(d) Thallium (I) sulphate
(e) Iron (III) sulphate
(f) Chromium (III) oxide

652 Views

12. What are electrolytes?

248 Views

13. What are cations and anions?

155 Views

14. What is electrolysis?

173 Views

15. Mention two uses of electrolysis.

134 Views

16. In the reaction:

SO subscript 2 space plus space 2 straight H subscript 2 straight S space space rightwards arrow space space space space 3 straight S space plus space 2 straight H subscript 2 straight O

name the substance oxidised?

124 Views

17. In the reaction:

$space space space space space space 3 Cl subscript 2 space plus space 6 NaOH space space rightwards arrow space space space space NaClO subscript 3 space plus space 5 NaCl space plus space 3 straight H subscript 2 straight O$
mention the element which losses as well as gains electrons.

Chlorine loses as well as gain electrons in the given reaction.

183 Views

18.

Define oxidation number of an element.

131 Views

19.

Differentiate between an ion and an atom.

97 Views

20.

Is the valency of an element same as its oxidant number?

116 Views

Previous Year Papers

Test Series

Test Yourself

Short Answer Type

17. In the reaction:mention the element which losses as well as gains electrons.