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The diagram given below is a part of Per...

The diagram given below is a part of Periodic Table. Study the table and answer the questions given below the table :

Which element forms very corrosive acid?

A

Chromic acid produced by chromium

B

Oxalic acid produced by Oxygen

C

Calcium carbonate acid produced by calcium

D

Ferric oxide produced by Iron

Text Solution

Verified by Experts

The correct Answer is:
A
Chromic acid produced by chromium forms the most corrosives acids.
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ICSE-SAMPLE PAPER 3 -MULTIPLE CHOICE QUESTION
  1. An element having atomic number 17 and belongs to halogens is

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  2. How many valence electrons are present in Mg?

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  3. Write the name of a non-metal of group 15.

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  4. When fused lead bromide is electrolysed we observe:

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  5. Arrange the following as per the instructions given in the brackets: ...

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  6. A chloride which forms a precipitate that is soluble in excess of ammo...

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  7. Sodium carbonate is a basic salt because it is a salt of a:

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  8. A polar covalent bond will be formed in which one of these pair of ato...

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  9. Sodium carbonate is a basic salt because it is a salt of a:

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  10. The vessel in which electrolysis of lead bromide is carried out is:

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  11. Arrange the following as per instructions given in the brackets: Cl,...

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  12. A solution of the compound which gives a dirty green precipitate with ...

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  13. Alkalis are :

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  14. Aluminium has a tendency to loose ......... electrons.

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  15. An organic compound contains carbon , hydrogen and oxygen . Its elemen...

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  16. Which soln. becomes a deep/inky blue colour when excess of ammonium hy...

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  17. The diagram given below is a part of Periodic Table. Study the table a...

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  18. The diagram given below is a part of Periodic Table. Study the table a...

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  19. The diagram given below is a part of Periodic Table. Study the table a...

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  20. The diagram given below is a part of Periodic Table. Study the table a...

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