Anions Evolving Gas with Dilute Acid

JEE Main Chemistry · Qualitative Salt Analysis · 6 questions, latest first

• A paper dipped in a dil. H_2 SO_4 solution of ' X ' upon treatment with SO_2 gas turns into green. The compound ' X ' is:20265 April, Shift 2 · Q70
• Given below are two statements: Statement I: Griss-Ilosvay test is used for the detection of nitrite ion, which involves the use…202628 January, Shift 1 · Q70
• Formation of Na_4[Fe(CN)_5 NOS], a purple coloured complex formed by addition of sodium nitroprusside in sodium carbonate extract…20252 April, Shift 2 · Q62
• Given below are two statements: Statement (I): The gas liberated on warming a salt with dil H_2 SO_4 turns a piece of paper…202430 January, Shift 1 · Q79
• During the qualitative analysis of SO_3^2- using dilute H_2 SO_4, SO_2 gas is evolved which turns K_2 Cr_2 O_7 solution…202330 January, Shift 1 · Q49
• K_2 Cr_2 O_7 paper acidified with dilute H_2 SO_4 turns green when exposed to202324 January, Shift 2 · Q48