Chemistry questions
29404 published questions with worked solutions.
- Consider the general reaction given below at 400 K xA(g) yB(g) The values of K_p and K_c are studied under the same condition of...
- For the following gas phase equilibrium reaction at constant temperature, NH_3(g) 1 2 N_2(g)+ 3 2 H_2(g) If the total pressure is...
- x mg of pure HCl was used to make an aqueous solution. 25.0 mL of 0.1M , Ba(OH)_2 solution is used when the HCl solution was...
- Consider all the structural isomers with molecular formula C_5H_ 11 Br are separately treated with KOH (aq) to give respective...
- Which of the following pair of nuclei are isobars of the element?
- It is noticed that Pb^ 2+ is more stable than Pb^ 2+ but Sn^ 2+ is less stable than Sn^ 4+ . Observe the following reactions...
- Both human DNA and RNA are chiral molecules. The chirality in DNA and RNA arises due to the presence of
- Identify the CORRECT set of details from the following : A. [Co(NH_3)_6]^ 3+ : Inner orbital complex ; d^2sp^3 hybridized B....
- Given below are two statements: Statement I: ( CH _3)_3 C is more stable than C H _3 as nine hyperconjugation interactions are...
- Given below are two statements : Statement I: The second ionisation enthalpy of Na is larger than the corresponding ionisation...
- Observe the following reactions at T(K) I. A → products. II. 5Br-(aq)+BrO3-(aq)+6H+(aq) → 3Br2(aq)+3H2O(l) Both the reactions are...
- Identify the INCORRECT statements from the following: A. Notation Mg-24-12 represents 24 protons and 12 neutrons. B. Wavelength...
- The oxidation state of chromium in the final product formed in the reaction between KI and acidified K_2Cr_2O_7 solution is:
- X_2(g) + Y_2(g) 2Z(g) X_2(g) and Y_2(g) are added to a 1 L flask and it is found that the system attains the above equilibrium at...
- Given below are two statements : Statement-I Hybridisation, shape and spin only magnetic moment of K_3[Co(CO_3)_3] is sp^3d^2,...
- Given below are statements about some molecules/ions. Identify the CORRECT statements. A. The dipole moment value of NF_3 is...
- A solution is prepared by dissolving 0.3 g of a nonvolatile non-electrolyte solute 'A' of molar mass 60 g mol ^ -1 and 0.9 g of a...
- Among the following, the CORRECT combinations are : A. IF_3 T-shaped (sp^3d) B. IF_5 Square pyramidal (sp^3d^2) C. IF_7...
- Given below are two statements Statements-I : The number of paramagnetic species among [CoF_6]^ 3- , [TiF_6]^ 3- , V_2O_5 and...
- Consider three metal chlorides x, y and z, where x is water soluble at room temperature, y is sparingly soluble in water at room...