Chemistry questions
29404 published questions with worked solutions.
- The volume (in mL) of 0.1 M AgNO_3 required for complete precipitation of chloride ions present in 30 mL of 0.01 M solution of...
- In 1 L saturated solution of AgCl [K_ sp (AgCl) = 1.6 10^ -10 ], 0.1 mol of CuCl [K_ sp (CuCl) = 1.0 10^ -6 ] is added. The...
- In allene ( C_3H_4 ), the type(s) of hybridisation of the carbon atoms is (are)
- The colour of light absorbed by an aqueous solution of CuSO_4 is
- The carboxyl functional group (–COOH) is present in
- Which ordering of compounds is according to the decreasing order of the oxidation state of nitrogen?
- As per IUPAC nomenclature, the name of the complex [Co(H_2O)_4(NH_3)_2]Cl_3 is
- Choose the correct reason(s) for the stability of the **lyophobic** colloidal particles.Not in JEE Main or NEET syllabus
- 29.2% (w/w) HCl stock solution has a density of 1.25 g mL^ -1 . The molecular weight of HCl is 36.5 g mol^ -1 . The volume (mL)...
- NiCl_2 P(C_2H_5)_2(C_6H_5) _2 exhibits temperature dependent magnetic behaviour (paramagnetic / diamagnetic). The coordination...
- In the cyanide extraction process of silver from argentite ore, the oxidizing and reducing agents used areNot in JEE Main or NEET syllabus
- The shape of XeO_2F_2 molecule is
- For a dilute solution containing 2.5 g of a non-volatile non-electrolyte solute in 100 g of water, the elevation in boiling point...
- Using the data provided, calculate the multiple bond energy (kJ mol⁻¹) of a C≡C bond in C_2H_2 . That energy is (take the bond...
- With respect to graphite and diamond, which of the statement(s) given below is (are) correct ?
- The compound that does **NOT** liberate CO_2 , on treatment with aqueous sodium bicarbonate solution, is
- Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at 25 °C. For this process, the correct statement isNot in JEE Main or NEET syllabus
- Sulfide ores are common for the metalsNot in JEE Main or NEET syllabus
- Upon treatment with ammoniacal H_2S , the metal ion that precipitates as a sulfide is
- The standard enthalpies of formation of CO_2(g) , H_2O(l) and glucose(s) at 25 °C are −400 kJ/mol, −300 kJ/mol and −1300 kJ/mol,...