The set of a quantum number that represents degenerate orbitals is:
1. a
2. b
3. c
4. a, b
| a. | \( \small{n=3, \ell=2, m=0, s=\frac{-1}{2} \,\& \ \,n=3, \ell=2, m=-1, s=\frac{+1}{2}}\) |
| b. | \(\small{n=2, \ell=1, m=1 , \ s=\frac{-1}{2}\, \&\, \ n=3, \ell=1, m=1 \mathrm{~s}=\frac{+1}{2}}\) |
| c. | \(\small{n=4, \ell=2, m=-1, s=\frac{1}{2}\, \&\, \ n=3, \ell=2, m=-1, s=\frac{1}{2}}\) |
1. a
2. b
3. c
4. a, b
Subtopic: Quantum Numbers & Schrodinger Wave Equation |
70%
Level 2: 60%+
JEE
Please attempt this question first.
Hints
Please attempt this question first.
\(C_{15}H_{30}\) is used as rocket fuel. The masses of oxygen used and \(CO_2\) produced per litre of consumption of \(C_{15}H_{30}\), respectively, are:
(Given: Density of \(C_{15}H_{30} \) = 0.756 gram/ml)
1. 2592 gram, 2376 gram
2. 2376 gram, 2592 gram
3. 2592 gram, 2868 gram
4. 2868 gram, 2776 gram
(Given: Density of \(C_{15}H_{30} \) = 0.756 gram/ml)
1. 2592 gram, 2376 gram
2. 2376 gram, 2592 gram
3. 2592 gram, 2868 gram
4. 2868 gram, 2776 gram
Subtopic: Equation Based Problem |
56%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
What is the concentration of a glucose solution in intravenous injection in gram/lit which is isotonic with blood solution which has osmotic pressure 7.93 bar at 300 K ?
1. 62 g/L
2. 0.58 g/L
3. 0.62 g/L
4. 58 g/L
1. 62 g/L
2. 0.58 g/L
3. 0.62 g/L
4. 58 g/L
Subtopic: Osmosis & Osmotic Pressure |
56%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
The number of oxides among the following that exhibit an amphoteric nature is:
(a) \(Na_2O\)
(b) \(As_2O_3\)
(c) \(NO\)
(d) \(N_2O\)
(e) \(Cl_2O_7\)
1. 0
2. 1
3. 2
4. 3
(a) \(Na_2O\)
(b) \(As_2O_3\)
(c) \(NO\)
(d) \(N_2O\)
(e) \(Cl_2O_7\)
1. 0
2. 1
3. 2
4. 3
Subtopic: Nature of Compound |
70%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Match the compounds given in Column-I with their respective hybridisation which is given in Column-II.
Correct matching is:
| Column-I (Compound) | Column-II Hybridisation | ||
| (i) | \(PCl_5 \) | (a) | \(sp^3d^2 \) |
| (ii) | \([Pt(CN)_4]^{-2} \) | (b) | \(sp^3d \) |
| (iii) | \([Co(NH_3)_6]^{3+} \) | (c) | \(d^2sp^3 \) |
| (iv) | \(BrF_5 \) | (d) | \(dsp^2 \) |
| I | II | III | IV | |
| 1. | b | d | c | a |
| 2. | a | b | c | d |
| 3. | b | d | a | c |
| 4. | d | b | a | c |
Subtopic: Hybridisation | V.S.E.P.R & V.B.T |
82%
Level 1: 80%+
JEE
Please attempt this question first.
Hints
Please attempt this question first.
In the structure of Co2(CO)8, X is the number of Co-Co bonds and Y is the number
of Co-CO terminal bonds. The value of X + Y is:
of Co-CO terminal bonds. The value of X + Y is:
| 1. | 8 | 2. | 6 |
| 3. | 10 | 4. | 7 |
Subtopic: Organometallic Complexes & their Uses |
53%
Level 3: 35%-60%
JEE
Please attempt this question first.
Hints
Please attempt this question first.
Among the following statements, the correct set of statements are:
| a. | \(B_2H_6 \) is Lewis acid. |
| b. | \(B_2H_6 \) has a planar structure. |
| c. | All B-H Bond lengths are equal in \(B_2H_6 \). |
| d. | In \(B_2H_6,\) four \(3C-2e^- \) bonds are present. |
| e. | \(B_2H_6 \) can be prepared by the reaction of \(BF_3 \) and \(NaBH_4 \). |
| 1. | a, b, c, d, e | 2. | a, e |
| 3. | a, b | 4. | d, e |
Subtopic: Compounds of Boron- Preparations, Properties & Uses |
52%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
For a 1st order reaction, following graph is obtained between lnk and \({1000 \over T}\). Then, the activation energy of the reaction in kcal is:
1. 37 kcal
2. 40 kcal
3. 42 kcal
4. 34 kcal
1. 37 kcal
2. 40 kcal
3. 42 kcal
4. 34 kcal
Subtopic: Arrhenius Equation |
79%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
How many sp² carbon atoms are present in the product formed from the given reaction?
1. 3
2. 0
3. 2
4. 6
Subtopic: Alkanes, Alkenes and Alkynes - Chemical Properties |
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Subtopic: Aldehydes & Ketones: Preparation & Properties |
76%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
© 2026 GoodEd Technologies Pvt. Ltd.