19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Phosphorus reacts with concentrated HNO3 to produce
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 -> ->
Iodine reacts with concentrated HNO3 to produce
Correct order of bond dissociation energy is (AIIMS 2019)
Which of the following oxide is most acidic? (JIPMER 2017)
Among the following compounds, which will produce POCl3 with PCl5? (JIPMER 2017)
In which of the following compounds, sulphur show maximum oxidation number? (JIPMER 2017)
The correct order of N-compounds in its decreasing order of oxidation states is (NEET 2018)
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)
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
Which of the following statements is correct?
Ozonized oxygen is a mixture of
Ozone is prepared by the action of silent electric discharge upon oxygen in an apparatus called ozonizer. The reaction
In ozone, the central oxygen atom uses