AIEEE 2003 | d and f Block Elements Question 191 | Chemistry

For making good quality mirrors, plates of float glass are used. These are obtained by floating molten glass over a liquid metal which does not solidify before glass. The metal used can be :

tin

sodium

magnesium

mercury

AIEEE 2003

MCQ (Single Correct Answer)

-1

What would happen when a solution of potassium chromate is treated with an excess of dilute nitric acid?

$$Cr_2O^{2-}_7$$ and H₂O are formed

$$CrO^{2-}_4$$ is reduced to +3 state of Cr

$$CrO^{2-}_4$$ is oxidized to +7 state of Cr

Cr³⁺ and $$Cr_2O^{2-}_7$$ are formed

AIEEE 2003

MCQ (Single Correct Answer)

-1

Which one of the following nitrates will leave behind a metal on strong heating?

Copper nitrate

Manganese nitrate

Silver nitrate

Ferric nitrate

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