∴X→Cu(NO3)2
An inorganic Compound ′X′ on treatment with concentrated H2SO4 produces brown fumes and gives dark brown ring with FeSO4 in presence of concentrated H2SO4. Also Compound ′X′ gives precipitate ′Y′, when its solution in dilute HCl is treated with H2S gas. The precipitate ′Y′ on treatment with concentrated HNO3 followed by excess of NH4OH further gives deep blue coloured solution, Compound ′X′ is:
Held on 20 Jul 2021 · Verified 6 Jul 2026.
Co(NO3)2
Pb(NO2)2
Cu(NO3)2
Pb(NO3)2
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The ratio of mass percentage (w/w) of C : H in a hydrocarbon is $12 : 1$. It has two carbon atoms. The weight (in g) of $CO_2(g)$ formed when $3.38$ g of this hydrocarbon is completely burnt in oxygen is : (Given : Molar mass in g mol$^{-1}$ C : 12, H : 1, O : 16)
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