Chemistry Question Bank

Which of the following compounds does not form ammonia on heating?

The best reducing agent among the following is

In which on of the following arrangements the given sequence is not strictly according to the properties Indicated against it? (NEET 2021)

Urea reacts with water to form A which will decomposes to form B. B when passed through Cu2+ (aq), deep blue color solution C is formed. What is the formula of C from the following. (NEET 2020)

In which of the following, oxidation state of phosphorus is +3? (JIPMER 2019)

Which of the following oxoacids of phosphorus has strongest reducing property? (NEET (Odisha)2019)

A compound ‘X’ upon reaction with H2O produced a colourless gas ‘Y’ with rotten fish smell. Gas ‘Y’ is absorbed in a solution of CuSO4 to give Cu3P2 as one of the products. Predict the compound ‘X’ (NEET (Odisha)2019)

Identify the incorrect statement related to PCl5 from the following: (NEET 2019)

Which of the following rare gas is the abundant in air? (JIPMER 2019)

In how many of the following number of lone at central atom is zero XeO3, XeO2F2, XeO4, XeO3F2, XeO3F6 ? (AIIMS2019)

Which of the following inert gas participate in chemicals reaction? (AIIMS 2019)

Which of the following statements is not true for halogens? (NEET 2019)

A green yellow gas reacts with an alkali metal hydroxide to form a halite which can be used in fireworks and safety matches. The gas and halite are, respectively (AIIMS 2019)

What is X and Y in the above reaction? (AIIMS 2019) (Excess) (Excess) 8NH 3Cl X NH 3Cl Y -> ->

Affinity for hydrogen decreases in the group from fluorine to iodine. Which of the halogen acids should have highest bond dissociation enthalpy? (AIIMS 2019)

Yellow colour of chlorine water fades because of (AIIMS 2019)

Correct order of bond dissociation energy is (AIIMS 2019)

Which of the following statement is correct for oleum? (AIIMS 2019)

Which is the correct order of thermal stability for H2E (E = O, S, Se, Te and Po)? (NEET 2019) (a) H O H S H Se H Te H Po (b) H Po H Te H Se H S H O (c) H Se H Te H Po H O H S (d) H S H O H Se H Te H Po

Among the following, the correct formula of Marshall’s acid is (JIPMER 2018)

Conversion of oxygen into ozone is non-spontaneous at (AIIPMT 2018)

Which of the following pair behaves as strong and weak base hydride respectively? (JIPMER 2018)

Which of the following chemicals are used to manufacture methyl isocyanate that caused “Bhopal Gas Tragedy” ? (JIPMER 2018) (i) Methylamine (ii) Phosgene (iii) Phosphine (iv) Dimethylamine

The correct order of N-compounds in its decreasing order of oxidation states is (NEET 2018)

Which of the following oxyacid does not contain P–O– P bond? (AIIMS 2018)