Practice questions
88551 published questions with worked solutions.
- The magnetic field at the centre of a current carrying circular loop of radius R is 16 T. The magnetic field at a distance x= 3 R...
- The displacement of a particle, executing simple harmonic motion with time period T, is expressed as x(t) = A t, where A is the...
- The ratio of de Broglie wavelength of a deutron with kinetic energy E to that of an alpha particle with kinetic energy 2E, is...
- A solid sphere of radius 10 cm is rotating about an axis which is at a distance 15 cm from its centre. The radius of gyration...
- A convex lens of refractive index 1.5 and focal length f=18cm is immersed in water. The difference in focal lengths of the given...
- At T(K), 2 moles of liquid A and 3 moles of liquid B are mixed. The vapour pressure of ideal solution formed is 320 mm Hg. At...
- Consider a weak base 'B' of pK_b = 5.699. 'x' mL of 0.02 M HCl and 'y' mL of 0.02 M weak base 'B' are mixed to make 100 mL of a...
- An organic compound undergoes first order decomposition. The time taken for decomposition to ( 1 8 )^ th and ( 1 10 )^ th of its...
- Given below are two statements: Statement I: The number of species among BF_4^-, SiF_4, XeF_4 and SF_4, that have unequal E-F...
- Regarding the hydrides of group 15 elements EH_3 (E=N,P,As,Sb), select the correct statement from the following: A. The stability...
- Given below are two statements: Statement I: Griss-Ilosvay test is used for the detection of nitrite ion, which involves the use...
- The wave numbers of three spectral lines of H atom are considered. Identify the set of spectral lines belonging to Balmer series....
- Given below are two statements : Statement I : The number of pairs, from the following, in which both the ions are coloured in...
- 500 mL of 1.2 M KI solution is mixed with 500 mL of 0.2M KMnO_4 solution in basic medium. The liberated iodine was titrated with...
- Consider the following redox reaction taking place in acidic medium BH_4^-(aq) + ClO_3^-(aq) H_2BO_3^-(aq) + Cl^-(aq) If the...
- X is the number of geometrical isomers exhibited by [Pt(NH_3)(H_2O)BrCl]. Y is the number of optically inactive isomer(s)...
- Consider the dissociation equilibrium of the following weak acid HA H^+(aq) + A^-(aq). If the pKa of the acid is 4, then the pH...
- Given below two statements : Statement I : 13^ 13 25^ 13 20^ 13 8^ 13 3 is divisible by 7. Statement II : The integral part of...
- Let A be the focus of the parabola y^2 = 8x. Let the line y = mx+c intersect the parabola at two distinct points B and C. If the...
- The probability distribution of a random variable X is given below : | X | 4k | 30 7 k | 32 7 k | 34 7 k | 36 7 k | 38 7 k | 40 7...