Chemistry questions
29404 published questions with worked solutions.
- The number of statement(s) correct from the following for Copper (at. no. 29) is/are _____. (A) Cu(II) complexes are always...
- Acidified potassium permanganate solution oxidises oxalic acid. The spin-only magnetic moment of the manganese product formed...
- Two elements A and B which form 0.15 moles of A_ 2 B and AB_ 3 type compounds. If both A_ 2 B and AB_ 3 weigh equally, then the...
- Total number of possible stereoisomers of dimethyl cyclopentane is _____.
- Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R Assertion A : Zero orbital...
- The correct decreasing order for metallic character is
- Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R Assertion A: The reduction...Not in JEE Main or NEET syllabus
- White phosphorus reacts with thionyl chloride to give
- Which of the following pair is not isoelectronic species? (At. no. Sm, 62; Er, 68; Yb, 70; Lu, 71; Eu, 63; Tb, 65; Tm, 69)
- Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Permanganate...
- Match List-I with List-II List-I (Complex): A. Ni(CO)_ 4 B. [Ni(CN)_ 4 ]^ 2- C. [Co(CN)_ 6 ]^ 3- D. [CoF_ 6 ]^ 3- List-II...
- Dinitrogen and dioxygen, the main constituents of air do not react with each other in atmosphere to form oxides of nitrogen...
- Arrange the following in increasing order of reactivity towards nitration A. p-xylene B. bromobenzene C. mesitylene D....
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A : Aniline on...
- Two statements in respect of drug-enzyme interaction are given below Statement I : Action of an enzyme can be blocked only when...
- Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Thin layer...
- Metal M crystallizes into a fcc lattice with the edge length of 4.0 10^ -8 cm. The atomic mass of the metal is _____ g/mol....Not in JEE Main or NEET syllabus
- A gaseous mixture of two substances A and B, under a total pressure of 0.8 atm is in equilibrium with an ideal liquid solution....
- At 600 K, 2 mol of NO are mixed with 1 mol of O_ 2 . 2NO(g) + O_ 2 (g) 2NO_ 2 (g). The reaction occurring as above comes to...
- On reaction with stronger oxidizing agent like KIO_ 4 , hydrogen peroxide oxidizes with the evolution of O_ 2 . The oxidation...