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The orbital having two radial as well as two angular nodes is

The orbital having two radial as well as two angular nodes is a. 5d b. 4f c. 3p d. 4d... View Article

For the given reaction:

For the given reaction: Answer: (d) It is benzylic substitution reaction.

Match List-I with List-II.

Match List-I with List-II. List –IList-II (Ore)(Element Present) (a) Kernite (i) Tin (b) Cassiterite (ii) Boron (c) Calamine (iii) Fluorine... View Article

B reacts with Hydroxyl amine but does not give Tollens test. Identify A and B.

B reacts with Hydroxyl amine but does not give Tollens test. Identify A and B. a. 1,1-Dichlorobutane and 2-Butanone b. 2,2-... View Article

Among the following, the number of metal/s which can be used as electrodes in the photoelectric cell is _____(Integer answer).

a. Li b. Na c. Rb d. Cs Answer: (d) Cs is used in photoelectric cells due to its very... View Article

Five moles of an ideal gas at 293 K is expanded isothermally from an initial pressure of 2.1 MPa to 1.3 MPa against a constant external 4.3 MPa. The heat transferred in this process is ____kJ mol^-1. (Rounded-off of the nearest integer)

[Use R = 8.314 J mol-1 K-1] Answer: 15 Moles (n) = 5 T = 293 K Process = Iso... View Article

Copper reduces into NO and NO₂ depending upon the concentration of HNO₃ in solution. (Assuming fixed [Cu²⁺] and P_NO=P_NO2), the HNO₃ concentration at which the thermodynamic tendency for reduction of into NO and NO₂ by copper is same is 10^x M.

The value of 2x is ______. (Rounded-off to the nearest integer) [Given: \(\begin{array}{l}E_{Cu^{2+} / Cu}^{0} = 0.34V, E_{No_{3}^{-} / NO}^{0}... View Article

Consider titration of NaOH solution versus 1.25 M oxalic acid solution. At the end point following burette readings were obtained.

(i) 4.5 mL (ii) 4.5 mL (iii) 4.4 mL (iv) 4.4 mL (v) 4.4 mL If the volume of oxalic... View Article

The unit cell of copper corresponds to a face centered cube of edge length 3.596 Å with one copper atom at each lattice point. The calculated density of copper in kg/m³is ______.

[Molar mass of Cu : 63.54 g; Avogadro number = 6.022×1023] Answer: 9077 a = 3.596 Å \(\begin{array}{l}d = \frac{Z\times... View Article

The number of compound/s given below which contain/s —COOH group is ______

a. Sulphanilic acid b. Picric acid c. Aspirin d. Ascorbic acid Answer: (a) Hence the answer is a

The spin only magnetic moment of a divalent ion in aqueous solution (atomic number 29) is ____BM.

The spin only magnetic moment of a divalent ion in aqueous solution (atomic number 29) is ____BM. Answer: 2 29Cu+2... View Article

If a compound AB dissociates to the extent of 75% in an aqueous solution, the molality of the solution which shows a 2.5 K rise in the boiling point of the solution is ______molal.

(Rounded-off to the nearest integer) [Kb =0.52 K kg mol-1] Answer: 3 AB → A+ + B– 1 – α... View Article

The solubility of Ca(OH)₂ in water is:

The solubility of Ca(OH)2 in water is: [Given: The solubility product of Ca(OH)2 in water = 5.5×10-6] a. 1.11 ×10-6... View Article

Which of the following compound is added to the sodium extract before the addition of silver nitrate for testing of halogens?

Which of the following compound is added to the sodium extract before the addition of silver nitrate for testing of... View Article

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