When the output of an OR gate is applied as input to a NOT gate, then the combination acts as a:
1. NAND gate
2. NOR gate
3. AND gate
4. OR gate
Subtopic: Logic gates |
87%
Level 1: 80%+
NEET - 2024
Hints
Given below are two statements:
1. Statement I is correct but Statement II is incorrect
2. Statement I is incorrect but Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
| Statement I : | Propene on treatment with diborane gives an addition product with the formula \((CH_3)_2-CH)_3 -B \) |
| Statement II : | Oxidation of \((CH_3)_2-CH)_3 -B\) with hydrogen peroxide in presence of \(NaOH \) gives propan-2-ol. |
1. Statement I is correct but Statement II is incorrect
2. Statement I is incorrect but Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
Subtopic: Alkanes, Alkenes and Alkynes - Chemical Properties |
Level 4: Below 35%
NEET - 2024
Hints
An interference pattern can be observed due to the superposition of more than one of the following waves:
(A) \(y=a\sin(\omega t)\)
(B) \(y=a\sin(2\omega t)\)
(C) \(y=a\sin\left(\omega t-\phi\right)\)
(D) \(y=a\sin(3\omega t)\)
Identify the waves from the options given below:
(A) \(y=a\sin(\omega t)\)
(B) \(y=a\sin(2\omega t)\)
(C) \(y=a\sin\left(\omega t-\phi\right)\)
(D) \(y=a\sin(3\omega t)\)
Identify the waves from the options given below:
| 1. | (B) and (C) only | 2. | (B) and (D) only |
| 3. | (A) and (C) only | 4. | (A) and (B) only |
Subtopic: Superposition Principle |
80%
Level 1: 80%+
NEET - 2024
Hints
Baeyer's reagent is:
| 1. | Acidic potassium permanganate solution |
| 2. | Acidic potassium dichromate solution |
| 3. | Cold, dilute, aqueous solution of potassium permanganate |
| 4. | Hot, concentrated solution of potassium permanganate |
Subtopic: Alkanes, Alkenes and Alkynes - Chemical Properties |
81%
Level 1: 80%+
NEET - 2024
Hints
Which of the following molecules has "non-zero" dipole moment value?
| 1. | \(\mathrm{CCl_4}\) | 2. | \(\mathrm{HI}\) |
| 3. | \(\mathrm{CO_2}\) | 4. | \(\mathrm{BF}_3\) |
Subtopic: Polarity |
79%
Level 2: 60%+
NEET - 2024
Hints
Subtopic: Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
68%
Level 2: 60%+
NEET - 2024
Hints
Which indicator is used and what is the color change at the endpoint in oxalic acid-sodium hydroxide titration?
1. Phenolphthalein, pink to yellow
2. Alkaline \(\mathrm{KMnO_4}\), colourless to pink
3. Phenolphthalein, colourless to pink
4. Methyl orange, yellow to pinkish red colour
Subtopic: The chemistry involved in the titrimetric exercises |
53%
Level 3: 35%-60%
NEET - 2024
Hints
Match List-I with List-II:
Identify the correct answer from the option given below:
| List-I (Atom/Molecule) |
List-II (Property) |
||
| A. | Nitrogen | I. | Paramagnetic |
| B. | Fluorine molecule | II. | Most reactive element in group 18 |
| C. | Oxygen molecule | III. | Element with highest ionisation enthalpy in group 15 |
| D. | Xenon atom | IV. | Strongest oxidising agent |
Identify the correct answer from the option given below:
| 1. | A- III, B-I, C-IV, D-II | 2. | A-I, B-IV, C-III, D-II |
| 3. | A-II, B-IV, C-I, D-III | 4. | A-III, B-IV, C-I, D-II |
Subtopic: M.O.T |
82%
Level 1: 80%+
NEET - 2024
Hints
From the following select the one which is not an example of corrosion:
| 1. | Rusting of an iron object |
| 2. | Production of hydrogen by electrolysis of water |
| 3. | Tarnishing of silver |
| 4. | Development of green coating on copper and bronze ornaments |
Subtopic: Corrosion |
83%
Level 1: 80%+
NEET - 2024
Hints
Which of the following pairs of ions will have the same spin only magnetic moment values within the pair?
A. \(\mathrm{Zn ^{2+}, Ti ^{2+}}\)
B. \(\mathrm{Cr ^{2+}, Fe ^{2+}}\)
C. \(\mathrm{Ti ^{3+}, Cu ^{2+}}\)
D. \(\mathrm{V ^{2+}, Cu ^{+}}\)
Choose the correct answer from the options given below:
A. \(\mathrm{Zn ^{2+}, Ti ^{2+}}\)
B. \(\mathrm{Cr ^{2+}, Fe ^{2+}}\)
C. \(\mathrm{Ti ^{3+}, Cu ^{2+}}\)
D. \(\mathrm{V ^{2+}, Cu ^{+}}\)
Choose the correct answer from the options given below:
| 1. | C and D only | 2. | A and D only |
| 3. | A and B only | 4. | B and C only |
Subtopic: d-Block Elements- Properties & Uses |
72%
Level 2: 60%+
NEET - 2024
Hints
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