Chemistry questions
29404 published questions with worked solutions.
- Activation energy of any chemical reaction can be calculated if one knows the value of
- 'Spin only' magnetic moment is same for which of the following ions? A. Ti^ 3+ B. Cr^ 2+ C. Mn^ 2+ D. Fe^ 2+ E. Sc^ 3+ Choose the...
- Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI. A....
- The plot of osmotic pressure ( ) vs concentration (mol L^ -1 ) for a solution gives a straight line with slope 25.73 L bar mol^...
- Identify the major product C formed in the following reaction sequence : CH_3-CH_2-CH_2-I NaCN A [ Partial hydrolysis ] OH^- B...
- Consider the following reaction in a sealed vessel at equilibrium with concentrations of N_2=3.0 10^ -3 M, O_2=4.2 10^ -3 M and...
- The products A and B obtained in the following reactions, respectively, are 3ROH+PCl_3 3RCl+A ROH+PCl_5 RCl+HCl+B
- The pair of lanthanoid ions which are diamagnetic is
- The rate of a reaction quadruples when temperature changes from 27°C to 57°C. Calculate the energy of activation. Given R = 8.314...
- During the preparation of Mohr's salt solution (Ferrous ammonium sulphate), which of the following acid is added to prevent...
- Given below are two statements : Statement I : [Co(NH_3)_6]^ 3+ is a homoleptic complex whereas [Co(NH_3)_4Cl_2]^ + is a...
- Mass in grams of copper deposited by passing 9.6487 A current through a voltmeter containing copper sulphate solution for 100...
- Identify a molecule which does not exist.
- Find out the solubility of Ni(OH)_2 in 0.1 M NaOH. Given that the ionic product of Ni(OH)_2 is 2 10^ -15 .
- Identify the correct statements from the following : (a) CO_2(g) is used as refrigerant for ice-cream and frozen food. (b) The...
- Hydrolysis of sucrose is given by the following reaction. Sucrose + H _2 O Glucose + Fructose If the equilibrium constant (K_c)...
- Identify the incorrect match. Name IUPAC Official Name (a) Unnilunium (i) Mendelevium (b) Unniltrium (ii) Lawrencium (c)...
- An element has a body centered cubic (bcc) structure with a cell edge of 288 pm. The atomic radius is :Not in JEE Main or NEET syllabus
- Which of the following set of molecules will have zero dipole moment ?
- On electrolysis of dil.sulphuric acid using Platinum (Pt) electrode, the product obtained at anode will be :