Chemistry questions
29404 published questions with worked solutions.
- Match List-I with List-II. List-I: (a) [ Fe ( CN )_6]^ 3- (b) [ Fe ( H _2 O )_6]^ 3+ (c) [ Fe ( CN )_6]^ 4- (d) [ Fe ( H _2 O...
- From the following pairs of ions which one is not an iso-electronic pair?
- The molar conductivity of 0.007 M acetic acid is 20 S cm^2 mol^ -1 . What is the dissociation constant of acetic acid? Choose the...
- Choose the correct option for the total pressure (in atm.) in a mixture of 4 g O_2 and 2 g H_2 confined in a total volume of one...
- The slope of Arrhenius plot ( k v/s 1T ) of first order reaction is -5 10^ 3 K. The value of E_a of the reaction is. Choose the...
- The correct stability order of the following resonance structures of CH₃–CH=CH–CHO is I: CH₃–C̄H–CH=CH–O⁺ (carbanion on the...
- The correct increasing order for bond angles among BF₃, PF₃ and ClF₃ is :
- Match List I with List II List-I (Cell): A. Leclanche cell, B. Ni-Cd cell, C. Fuel cell, D. Mercury cell List-II...
- Match List I with List II List-I: A. K₂[Ni(CN)₄], B. [Ni(CO)₄], C. [Co(NH₃)₆]Cl₃, D. Na₃[CoF₆] List-II: I. sp³, II. sp³d², III....
- The coordination environment of Ca²⁺ ion in its complex with EDTA⁴⁻ is :
- The incorrect statement about Glucose is :
- Which of the following compound can give positive iodoform test when treated with aqueous KOH solution followed by potassium...
- Given below are two statements : Statement I : The higher oxidation states are more stable down the group among transition...
- The incorrect statement regarding ethyne is :
- Match List I with List II List-I (Element): A. N, B. S, C. Br, D. Kr List-II (Electronic Configuration): I. [Ar] 3d¹⁰ 4s² 4p⁵,...
- Match List I with List II List-I: A. Melting point [K], B. Ionic Radius [M³⁺/pm], C. Δ_ IE H₁ [kJ mol⁻¹], D. Atomic Radius [pm]...
- Which of the following compounds will give silver mirror with ammoniacal silver nitrate? (A) Formic acid (B) Formaldehyde (C)...
- Which out of the following is a correct equation to show change in molar conductivity with respect to concentration for a weak...
- Number of oxygen atoms present in chemical formula of fuming sulphuric acid is ________.
- A transition metal 'M' among Sc, Ti, V, Cr, Mn and Fe has the highest second ionisation enthalpy. The spin only magnetic moment...