Chemistry questions
29404 published questions with worked solutions.
- The major product (A) formed in the reaction given below is : PhCH(CH_3)CH_2Br+CH_3O^- CH_3OH A (Major product)
- Lyophilic sols are more stable than lyophobic sols because :Not in JEE Main or NEET syllabus
- The major product of the following reaction, if it occurs by S_N2 mechanism is phenol + allyl-type bromide [ acetone ] K_2CO_3
- Which one of the following tests used for the identification of functional groups in organic compounds does not use copper...
- Hydrolysis of sucrose gives :
- Which one of the following is formed (mainly) when red phosphorus is heated in a sealed tube at 803 K ?
- The first order rate constant for the decomposition of CaCO_3 at 700 K is 6.36 10^ -3 s^ -1 and activation energy is 209 kJ mol^...
- The number of optical isomers possible for [Cr(C_2O_4)_3]^ 3- is________.
- 100 g of propane is completely reacted with 1000 g of oxygen. The mole fraction of carbon dioxide in the resulting mixture is x...
- 40 g of glucose (Molar mass = 180) is mixed with 200 mL of water. The freezing point of solution is ——— K. (Nearest integer)...
- The resistance of a conductivity cell with cell constant 1.14 cm^ -1 , containing 0.001 M KCl at 298 K is 1500 . The molar...
- When 5.1 g of solid NH_4HS is introduced into a two litre evacuated flask at 27°C, 20% of the solid decomposes into gaseous...
- The number of species having non–pyramidal shape among the following is_________. (A) SO_3 (B) NO_3^- (C) PCl_3 (D) CO_3^ 2-
- Data given for the following reaction as follows : FeO_ (s) +C_ (graphite) Fe_ (s) +CO_ (g) Substance: H^0(kJ mol^ -1 ), S^0(J...
- Which one of the following compounds contains -C_1-C_4 glycosidic linkage ?
- Which one of the following lanthanides exhibits +2 oxidation state and diamagnetic nature ? (Given Z for Nd = 60, Yb = 70, La =...
- Assertion (A) : Aluminium is extracted from bauxite by the electrolysis of molten mixture of Al_2O_3 with cryolite. Reason (R) :...Not in JEE Main or NEET syllabus
- Monomer of Novolac is :Not in JEE Main or NEET syllabus
- The denticity of an organic ligand, biuret is :
- Assertion (A) : Metallic character decreases and non-metallic character increases on moving from left to right in a period....