Chemistry questions
29404 published questions with worked solutions.
- The metal ion (in gaseous state) with lowest spin-only magnetic moment value is
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: A mixture...
- During halogen test, sodium fusion extract is boiled with concentrated HNO_ 3 to
- In the given reaction 2A (i) 2 Mg, THF (ii) Methyl benzoate (iii) H_ 3 O^ + /H^ + triphenylmethanol. 'A' can be
- Which of the following conditions or reaction sequence will NOT give acetophenone as the major product ?
- Which of the following ketone will NOT give enamine on treatment with secondary amines ?
- A protein 'A' contains 0.30% of glycine (molecular weight 75). The minimum molar mass of the protein 'A' is _____ 10^ 3 g mol^ -1...
- Amongst BeF_ 2 , BF_ 3 , H_ 2 O, NH_ 3 , CCl_ 4 and HCl, the number of molecules with non-zero net dipole moment is _____
- At 345 K, the half life for the decomposition of a sample of a gaseous compound initially at 55.5 kPa was 340 s. When the...
- A solution of Fe_ 2 (SO_ 4 )_ 3 is electrolyzed for 'x' min with a current of 1.5 A to deposit 0.3482 g of Fe. The value of x is...
- Consider the following reactions : PCl_ 3 + H_ 2 O A + HCl; A + H_ 2 O B + HCl. The number of ionisable protons present in the...
- Amongst FeCl_ 3 3H_ 2 O, K_ 3 [Fe(CN)_ 6 ] and [Co(NH_ 3 )_ 6 ]Cl_ 3 , the spin-only magnetic moment value of the inner-orbital...
- The Novolac polymer has mass of 963 g. The number of monomer units present in it are _____Not in JEE Main or NEET syllabus
- How many of the given compounds will give a positive Biuret test _____? Glycine, Glycylalanine, Tripeptide, Biuret.
- The neutralization occurs when 10 mL of 0.1 M acid 'A' is allowed to react with 30 mL of 0.05 M base M(OH)_ 2 . The basicity of...
- Bonding in which of the following diatomic molecule(s) become(s) stronger, on the basis of MO Theory, by removal of an electron?...
- Incorrect statement for Tyndall effect is :Not in JEE Main or NEET syllabus
- The pair, in which ions are isoelectronic with Al^ 3+ is-
- Leaching of gold with dilute aqueous solution of NaCN in presence of oxygen gives complex [A], which on reaction with zinc forms...Not in JEE Main or NEET syllabus
- Number of electron deficient molecules among the following : PH_ 3 , B_ 2 H_ 6 , CCl_ 4 , NH_ 3 , LiH and BCl_ 3 is -