CBSE 11th Standard Chemistry Subject Hydrogen Ncert Exemplar 5 Mark Questions 2021
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CBSE 11th Standard Chemistry Subject Hydrogen Ncert Exemplar 5 Mark Questions 2021
11th Standard CBSE
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Reg.No. :
Chemistry
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A colourless liquid A contains H and O elements only. It decomposes slowly one exposure to light. It is stabilised by mixing urea to store in the presence of light.
(i) Suggest possible structure of A
(ii) Write chemical equations for its decomposition reaction in the light.(a) -
An ionic hydride of an alkali metal has significant covalent character and is almost unreactive towards oxygen and chlorine. This is used in the synthesis of other useful hydrides. Write its reaction with \({ Al }_{ 2 }{ Cl }_{ 6 }\)
(a) -
What mass of hydrogen peroxide will be present in 2L of a 5M solution?
(a) -
Calculate the mass of oxygen which will be liberated by the decomposition of 200mL of this solution.
(a)
