Explanation
Ammonia generally prepared by Haber's process
One part conc. HNO3 & 3parts conc. HCl forms aquaregia.
V2O5 catalyst are used for manufacture of H2SO4 by contanct process
Mixture of K2Cr2O7 and conc. H2SO4 known as chromic acid
The bond between (H2Te) is weakest hence it gives H+ ion easily..
H2O containing hydrogen bond,
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