19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Dry Cl₂ reacts with dry SO₂ to form:
Which of the following oxides of chlorine is obtained by passing dry chlorine over silver chlorate at 900C?
HClO₄ + P₂O₅ → (A) + (B)
When iodine is treated with a mixture of NaF, NaBr and NaCl in water, it gives
Liquid I₂ Cl₆ has the structure (a)
The property of halogens, that indicated incorrect is:
When H₂S gas is passed into aqueous sulphur dioxide
Na₂SO₃ on being heated with sulphur produces
The number of S—S bonds in sulphur trioxide trimer S₃O₉ is:
Which of the following does not have S—S linkage? (a) S O (b) S O (c) S O (d) S O
Which is not correct regarding the Holme’s signal?
White phosphorus reacts with calcium to give a certain compound. This compound on hydrolysis produces
White phosphorus on reaction with limewater gives calcium salt of an acid (A) along with a gas (X). Which of the following is correct?
Phosphorus is obtained by
NH₄NO₂ NH₄NO₂ on heating gives
In the cationic parts of solid N₂O₅ and solid N₂O₄, the bond order of N–O are, respectively,
When AgNO₃ is heated strongly above 800°C, it produces
Pure nitric acid is a colourless liquid, but on exposure to light it turns brownish due to
Which of the following compounds give NH₃ on heating? (I) NH₄NO₃ (II) NH₄NO₂ (III) (NH₄)₂ Cr₂O₇ (IV)(NH₄)₂CO₃ (V) Mg (NH₄) PO₄
N₂ is passed through overheated CaC₂. Which of the following options is correct for the product formed? (I) State of hybridization of C is sp. (II) Urea is an intermediate formed during hydrolysis of the above product…
Which of the following compounds does not form ammonia on heating?
The best reducing agent among the following is
NH₄Cl is preferred to NaCl for the preparation of HCl by the action of concentrated H₂SO₄ because
Which is not correct regarding the Holme’s signal?
White phosphorus reacts with calcium to give a certain compound. This compound on hydrolysis produces