Practice questions
88551 published questions with worked solutions.
- In a single slit experiment, a parallel beam of green light of wavelength 550 nm passes through a slit of width 0.20 mm. The...
- A sonometer wire of resonating length 90 cm has a fundamental frequency of 400 Hz when kept under some tension. The resonating...
- A hollow sphere is rolling on a plane surface about its axis of symmetry. The ratio of rotational kinetic energy to its total...
- The maximum height reached by a projectile is 64 m. If the initial velocity is halved, the new maximum height of the projectile...
- A wire of resistance 20 Ω is divided into 10 equal parts. A combination of two parts are connected in parallel and so on. Now...
- The current in an inductor is given by I = (3t + 8) where t is in second. The magnitude of induced emf produced in the inductor...
- Match List-I with List-II. List-I: (A) ICl (B) ICl_3 (C) ClF_5 (D) IF_7 List-II: (I) T-Shape (II) Square pyramidal (III)...
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): NH_3 and...
- Given below are two statements: Statement I: On passing HCl(g) through a saturated solution of BaCl_2, at room temperature white...
- The metal atom present in the complex MABXL (where A, B, X and L are unidentate ligands and M is metal) involves sp^3...
- Match List-I with List-II. List-I (Pair of Compounds): (A) n-propanol and Isopropanol (B) Methoxypropane and ethoxyethane (C)...
- The quantity of silver deposited when one coulomb charge is passed through AgNO_3 solution:
- Given below are two statements: Statement I: The metallic radius of Na is 1.86 Å and the ionic radius of Na^+ is lesser than 1.86...
- CH_3CH_2–OH → (i) Jone's Reagent → P (ii) KMnO_4 (iii) NaOH, CaO. Consider the above reaction sequence and identify the major...
- For the electro chemical cell M|M^ 2+ ||X|X^ 2- . If E^o_ (M^ 2+ /M) = 0.46 V and E^o_ (X/X^ 2- ) = 0.34 V. Which of the...
- The number of moles of methane required to produce 11g CO_2(g) after complete combustion is: (Given molar mass of methane in g...
- The number of complexes from the following with no electrons in the t_2 orbital is _______. TiCl_4, [MnO_4]^-, [FeO_4]^ 2- ,...
- The number of ions from the following that have the ability to liberate hydrogen from a dilute acid is _______. Ti^ 2+ , Cr^ 2+...
- The correct statements from the following are: (A) The decreasing order of atomic radii of group 13 elements is Tl > In > Ga > Al...
- Combustion of 1 mole of benzene is expressed as C_6H_6(l) + 15 2 O_2(g) → 6CO_2(g) + 3H_2O(l). The standard enthalpy of...