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: An aqueous...
- The complex cation which has two isomers is :
- The graph which represents the following reaction is : (C_6H_5)_3C-Cl [Pyridine] OH^- (C_6H_5)_3C-OH
- In the reaction, (salicylic acid methyl ester type) reagents 'X' and 'Y' respectively are :
- The effect of addition of helium gas to the following reaction in equilibrium state, is PCl_5(g) PCl_3(g)+Cl_2(g)
- For electron gain enthalpies of the elements denoted as _ eg H, the incorrect option is
- O–O bond length in H_2O_2 is X than the O–O bond length in F_2O_2. The O–H bond length in H_2O_2 is Y than that of the O–F bond...
- Testosterone, which is a steroidal hormone, has the structure shown. The total number of asymmetric carbon atom/s in testosterone...
- A The above reaction is of zero order. Half life of this reaction is 50 min. The time taken for the concentration of A to reduce...
- 0.3 g of ethane undergoes combustion at 27°C in a bomb calorimeter. The temperature of calorimeter system (including the water)...
- The spin only magnetic moment of [Mn(H_2O)_6]^ 2+ complexes is __________B.M. (Nearest integer) (Given : Atomic no. of Mn is 25)
- 20% of acetic acid is dissociated when its when 5 g is added to 500 mL of water. The depression in freezing point of such water...
- 1 10^ -5 M AgNO_3 is added to 1 L of saturated solution of AgBr. The conductivity of this solution at 298 K is __________ 10^ -8...
- Among the following, the number of tranquilizer/s is/are ______________. A. Chloroliazepoxide B. Veronal C. Valium D. SalvarsanNot in JEE Main or NEET syllabus
- The molarity of a 10% (v/v) solution of di-bromine solution in CCl_4 (carbon tetrachloride) is 'x'. x = ______________ 10^ -2 M....
- Among following compounds, the number of those present in copper matte is ______________. A. CuCO_3 B. Cu_2S C. Cu_2O D. FeONot in JEE Main or NEET syllabus
- Given below are two statements : Statement-I : Chlorine can easily combine with oxygen to form oxides; and the product has a...
- Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R Assertion A : Hydrogen is...Not in JEE Main or NEET syllabus
- Match List-I with List-II. List-I: (A) Tranquilizers (B) Aspirin (C) Antibiotic (D) Antiseptic List-II: (I) Anti blood clotting...Not in JEE Main or NEET syllabus
- Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Amongst He,...Not in JEE Main or NEET syllabus