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Which is the gas evolved here?
Phenols are more acidic than alcohols. What is the product obtained when phenol is treated with conc. HNO_3 ?
A salt (A) when heated with K_2 Cr_2 O_7 and conc. H_2 SO_4 liberates a gas which is absorbed in NaOH solution. The NaOll solution turns yellow. When this solution is acidified with acetic acid and lead acetate solution is added, a yellow precipitate (B) is formed. (A) is mixed with MnO_2 and heated with conc. H_2 SO_4 when a gas (C) is evolved which tums starch-iodide paper blue. What is the colour of gas which is evolved when salt (A) is heated with MnO_2 and H_2 SO_4 ?
When copper is heated with conc. HNO_3 it produces
An experimental setupis made to compare the reactionsof Mg,Zn and Cu with dilute hydrochloric acid: Which is the gas evolved when zinc react with dilute hydrochloric acid?
BRILLIANT PUBLICATION-CHEMICAL AND IONIC EQUILIBRIUM-Level - III (Linked Comprehension Type Questions)
