- 1(current)
Q. No.Methane reacts with steam at 1273 K in the presence of nickel catalyst to form:
1. CO and \(H_2\)
2. CO and \(H_2O\)
3. \(CO_2\) and \(H_2O\)
4. \(CO_2\) and \(H_2\)
1. CO and \(H_2\)
2. CO and \(H_2O\)
3. \(CO_2\) and \(H_2O\)
4. \(CO_2\) and \(H_2\)
Subtopic: Aliphatic Hydrocarbon- Physical Properties | Alkanes, Alkenes and Alkynes - Chemical Properties |
54%
Level 3: 35%-60%
NEET - 2026
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Please attempt this question first.
The amount of carbon dioxide evolved upon complete combustion of 116 g of n-butane is :
(Given: atomic mass in amu H = 1, C = 12 and O = 16)
(Given: atomic mass in amu H = 1, C = 12 and O = 16)
| 1. | 362 g |
| 2. | 352 g |
| 3. | 322 g |
| 4. | 176 g |
Subtopic: Aliphatic Hydrocarbon- Physical Properties | Alkanes, Alkenes and Alkynes - Chemical Properties |
60%
Level 2: 60%+
NEET - 2026
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Please attempt this question first.
Given below are two statements :
1. Both Statement I and Statement II are incorrect.
2. Statement I is correct but Statement II is incorrect.
3. Statement I is incorrect but Statement II is correct.
4. Both Statement I and Statement II are correct.
| Statement I: | The boiling point of three isomeric pentanes follows the order, \(\small\text { n-Pentane }>\text { Isopentane }>\text { Neopentane }\) |
| Statement II: | When branching increases, the molecule attains the shape of sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point. |
1. Both Statement I and Statement II are incorrect.
2. Statement I is correct but Statement II is incorrect.
3. Statement I is incorrect but Statement II is correct.
4. Both Statement I and Statement II are correct.
Subtopic: Aliphatic Hydrocarbon- Physical Properties |
76%
Level 2: 60%+
NEET - 2024
Hints
Arrange the following compounds in increasing order of their solubilities in chloroform:
\(\mathrm{NaCl, CH_3 OH, cyclohexane(\mathrm{C}_6 \mathrm{H}_{12}), CH_3CN}\)
1. \(\mathrm{NaCl< CH_3CN<CH_3 OH<Cyclohexane}\)
2. \(\mathrm{CH_3 OH<CH_3CN<NaCl<Cyclohexane}\)
3. \(\mathrm{NaCl< CH_3 OH<CH_3CN<Cyclohexane}\)
4. \(\mathrm{Cyclohexane< CH_3CN<CH_3 OH<NaCl}\)
\(\mathrm{NaCl, CH_3 OH, cyclohexane(\mathrm{C}_6 \mathrm{H}_{12}), CH_3CN}\)
1. \(\mathrm{NaCl< CH_3CN<CH_3 OH<Cyclohexane}\)
2. \(\mathrm{CH_3 OH<CH_3CN<NaCl<Cyclohexane}\)
3. \(\mathrm{NaCl< CH_3 OH<CH_3CN<Cyclohexane}\)
4. \(\mathrm{Cyclohexane< CH_3CN<CH_3 OH<NaCl}\)
Subtopic: Aliphatic Hydrocarbon- Physical Properties |
Level 3: 35%-60%
NEET - 2024
Hints
Match the bond line structures of hydrocarbons given in List-I with the corresponding boiling points given in List-II.
| List-I (Compound) | List-II (Boiling point in K) | ||
| (a) |  |
(i) | 300.9 |
| (b) |  |
(ii) | 282.5 |
| (c) |  |
(iii) | 309.1 |
| (d) |  |
(iv) | 341.9 |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (i) | (iv) | (iii) | (ii) |
| 2. | (iii) | (i) | (iv) | (ii) |
| 3. | (iii) | (iv) | (i) | (ii) |
| 4. | (iv) | (i) | (ii) | (iii) |
Subtopic: Aliphatic Hydrocarbon- Physical Properties |
83%
Level 1: 80%+
NEET - 2022
Hints
What is the correct order of boiling points for the following compounds, arranged from the highest to the lowest?
(a) Heptane
(b) Butane
(c) 2-Methylbutane
(d) 2-Methylpropane
(e) Hexane
Choose the correct option from the following:
1. (a) > (c) > (e) > (d) > (b)
2. (c) > (d) > (a) > (e) > (b)
3. (a) > (e) > (b) > (c) > (d)
4. (a) > (e) > (c) > (b) > (d)
(a) Heptane
(b) Butane
(c) 2-Methylbutane
(d) 2-Methylpropane
(e) Hexane
Choose the correct option from the following:
1. (a) > (c) > (e) > (d) > (b)
2. (c) > (d) > (a) > (e) > (b)
3. (a) > (e) > (b) > (c) > (d)
4. (a) > (e) > (c) > (b) > (d)
Subtopic: Aliphatic Hydrocarbon- Physical Properties |
55%
Level 3: 35%-60%
NEET - 2022
Hints
Subtopic: Aliphatic Hydrocarbon- Physical Properties |
68%
Level 2: 60%+
AIPMT - 2011
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