Main 13 · Advanced 13
Anion analysis
- Advanced 2009ChemistrySingle correct
The compound X is
- Advanced 2008ChemistryMultiple correct
A solution of colourless salt H on boiling with excess NaOH produces a non-flammable gas. The gas evolution ceases after sometime. Upon addition of Zn dust to the same solution, the gas evolution restarts. The colourless salt(s) H is (are)
- Advanced 2008ChemistryAssertion and reason
STATEMENT-1: is paramagnetic.
and
STATEMENT-2: The Fe in has three unpaired electrons.
- Advanced 2008ChemistryMatrix match
Match the compounds in Column I with their characteristic test(s)/reaction(s) given in Column II. Indicate your answer by darkening the appropriate bubbles of the 4 × 4 matrix given in the ORS.
- Advanced 2007ChemistryMatrix match
Match the reactions in Column I with nature of the reactions/type of the products in Column II. Indicate your answer by darkening the appropriate bubbles of the 4 × 4 matrix given in the ORS.
- Advanced 2007ChemistryMatrix match
Match the compounds/ions in Column I with their properties/reactions in Column II. Indicate your answer by darkening the appropriate bubbles of the 4 × 4 matrix given in the ORS.