Chemistry questions
29404 published questions with worked solutions.
- PCl_ 5 is well known, but NCl_ 5 is not. Because,
- Transition metal complex with highest value of crystal field splitting ( _ 0 ) will be
- Given below are two statements. Statement I: The presence of weaker -bonds make alkenes less stable than alkanes. Statement II:...
- Hex-4-ene-2-ol on treatment with PCC gives 'A' on reaction with sodium hypoiodite gives 'B', which on further heating with soda...
- The conversion of propan-1-ol to n-butylamine involves the sequential addition of reagents. The correct sequential order of...
- Which of the following is not an example of a condensation polymer?Not in JEE Main or NEET syllabus
- In the flame test of a mixture of salts, a green flame with blue centre was observed. Which one of the following cations may be...
- At 300 K, a sample of 3.0 g of gas A occupies the same volume as 0.2 g of hydrogen at 200 K at the same pressure. The molar mass...
- A company dissolves 'x' amount of CO_ 2 at 298 K in 1 litre of water to prepare soda water. X = _____ 10^ -3 g. (nearest integer)...
- PCl_ 5 dissociates as PCl_ 5 (g) PCl_ 3 (g) + Cl_ 2 (g). 5 moles of PCl_ 5 are placed in a 200 litre vessel which contains 2...
- The resistance of a conductivity cell containing 0.01 M KCl solution at 298 K is 1750 . If the conductivity of 0.01 M KCl...
- When 200 mL of 0.2 M acetic acid is shaken with 0.6 g of wood charcoal, the final concentration of acetic acid after adsorption...Not in JEE Main or NEET syllabus
- Manganese (VI) has ability to disproportionate in acidic solution. The difference in oxidation states of two ions it forms in...
- 0.2 g of an organic compound was subjected to estimation of nitrogen by Duma's method in which volume of N_ 2 evolved (at STP)...
- In alanylglycylleucylalanylvaline, the number of peptide linkages is _____ .
- Match List-I with List-II : List-I (Molecule): (a) XeO_ 3 (b) XeF_ 2 (c) XeOF_ 4 (d) XeF_ 6 List-II (Hybridization, shape): (I)...
- The molar conductivity of a conductivity cell filled with 10 moles of 20 mL NaCl solution is _ m _ 1 and that of 20 moles another...
- For micelle formation, which of the following statements are correct? a. Micelle formation is an exothermic process. b. Micelle...Not in JEE Main or NEET syllabus
- The first ionization enthalpies of Be, B, N and O follow the order
- Given below are two statements. Statement-I : Pig iron is obtained by heating cast iron with scrap iron. Statement-II : Pig iron...Not in JEE Main or NEET syllabus