Chemistry questions
29404 published questions with worked solutions.
- Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Dacron is an...Not in JEE Main or NEET syllabus
- The structure of protein that is unaffected by heating is
- A white precipitate was formed when BaCl_ 2 was added to water extract of an inorganic salt. Further, a gas 'X' with...
- Elevation in boiling point for 1.5 molal solution of glucose in water is 4 K. The depression in freezing point for 4.5 molal...
- The cell potential for the given cell at 298 K Pt|H_ 2 (g, 1 bar)|H^ + (aq)||Cu^ 2+ (aq)|Cu(s) is 0.31 V. The pH of the acidic...
- The equation k = (6.5 10^ 12 s^ -1 )e^ -26000K/T is followed for the decomposition of compound A. The activation energy for the...
- Spin only magnetic moment of [MnBr_ 6 ]^ 4- is _____ B.M. [round off to the closest integer]
- For the reaction given below : COCl_ 3 xNH_ 3 + AgNO_ 3 (aq) . If two equivalents of AgCl precipitate out, then the value of x...
- The number of chiral alcohol(s) with molecular formula C_ 4 H_ 10 O is _____.
- Production of iron in blast furnace follows the following equation Fe_ 3 O_ 4 (s) + 4CO(g) 3Fe(l) + 4CO_ 2 (g) when 4.640 kg of...
- Which of the following statements are correct ? (A) The electronic configuration of Cr is [Ar] 3d^ 5 4s^ 1 . (B) The magnetic...
- Arrange the following in the decreasing order of their covalent character : (A) LiCl (B) NaCl (C) KCl (D) CsCl Choose the most...
- The solubility of AgCl will be maximum in which of the following?
- In isolation of which one of the following metals from their ores, the use of cyanide salt is not commonly involved?Not in JEE Main or NEET syllabus
- Which one of following reactions indicates the reducing ability of hydrogen peroxide in basic medium?
- Match List-I with List-II. List-I (Metal): (A) Li (B) Na (C) Rb (D) Cs List-II (Emitted light wavelength (nm)): (I) 670.8 (II)...Not in JEE Main or NEET syllabus
- The oxoacid of phosphorus that is easily obtained from a reaction of alkali and white phosphorus and has two P-H bonds, is:
- Two isomers 'A' and 'B' with molecular formula C_ 4 H_ 8 give different products on oxidation with KMnO_ 4 /H^ + results in...
- Given below are two statements: Statement I: The esterification of carboxylic acid with an alcohol is a nucleophilic acyl...
- Sugar moiety in DNA and RNA molecules respectively are