19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
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)
Which of the following products will be obtained when copper metal is reacted with HNO3? (AIIMS 2018)
In which of the following arrangements, the order is not strictly according to the property written against it? (AIIMS 2018)
Xenon hexafluoride reacts with silica to form a xenon compound X. The oxidation state of xenon in X is (JIPMER 2018)
A gas ‘X’ is used in filling balloons for meteorological observations. It is also used in gas-cooled nuclear reactors. Here, the gas X is (AIIMS 2018)
Name the gas that can readily decolourise acidified KMnO4 solution. (NEET 2017)
In which of the following compounds, sulphur show maximum oxidation number? (JIPMER 2017)
Among the following compounds, which will produce POCl3 with PCl5? (JIPMER 2017)
Which of the following oxide is most acidic? (JIPMER 2017)
Nitrogen dioxide and sulphur dioxide have some properties in common. Which property is shown by one of these compounds, but not by the other? (CBSE AIPMT 2015)
The gaseous product formed when HOCl reacts with H2O2 in acidic medium is (Kerala CEE 2014)
Which among the following group 16 elements exists in more than two allotropic states? (JCECE 2014)
Acidity of diprotic acids in aqueous solutions increases in the order (CBSE AIPMT 2014)
The correct arrangement of following acids of phosphorus in the increasing order of oxidation state of phosphorus is (Guj CET 2014)
The species that is not hydrolysed in water is (KCET 2014)
The statement that is not correct is (KCET 2014)
Which one of the following statements is not valid for oxoacids of phosphorous? (Manipal 2012)
When conc. H2SO4 is heated with P2O5 the acid is converted to (UP CPMT 2012)
Which of the following statements is correct for the iodine molecule?
All the halogens are coloured. The colours arise due to
Which one among the following is the most powerful oxidizing agent?
Which of the following halogens has only one oxidation state of –1 in an aqueous solution?