MEDIUM
10th ICSE
IMPORTANT
Earn 100

A given greenish coloured solution A on reaction with barium chloride solution gives a white precipitate that is insoluble in all the mineral acids and another part of solution A on treating with ammonium hydroxide gives dirty green precipitate. Identify anion.

Important Questions on Practice Paper-7

MEDIUM
10th ICSE
IMPORTANT
A given greenish coloured solution A on reaction with barium chloride solution gives a white precipitate that is insoluble in all the mineral acids and another part of solution A on treating with ammonium hydroxide gives dirty green precipitate. Identify cation in the given solution A.
MEDIUM
10th ICSE
IMPORTANT
Write a chemical equation for the conversion of ethyl alcohol to ethene.
MEDIUM
10th ICSE
IMPORTANT
Write a chemical equation for the reaction of bromine with ethene.
MEDIUM
10th ICSE
IMPORTANT
What is the type of reaction between ethene and bromine?
MEDIUM
10th ICSE
IMPORTANT
Give equations for the reactions of ethanol with concentrated sulphuric acid using an excess of the acid.
MEDIUM
10th ICSE
IMPORTANT
Give equations for the reactions of ethanol with PCl5.
MEDIUM
10th ICSE
IMPORTANT
Give equations for the reactions of ethanol with oxygen.
HARD
10th ICSE
IMPORTANT

From the equation:NH42Cr2O7Cr2O3+4H2O+N2

Calculate the volume of nitrogen at STP evolved when 6.3 g of ammonium dichromate is heated.