317929
Assertion : Among isomeric pentanes, 2, 2 -dimethylpropane has highest boiling point. Reason : Branching affects the boiling point.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
As the branching increases, boiling point decreases. So, 2, 2-dimethylpropane has least boiling point.
CHXI13:HYDROCARBONS
317930
Which among the following molecules exhibits strong London forces?
1 neo-pentane
2 n-pentane
3 isobutane
4 isopentane
Explanation:
n-pentatne is a straight chain alkane, exhibits strong London forces as compared to other branched chain alkanes.
MHTCET - 2021
CHXI13:HYDROCARBONS
317931
Hydrocarbon which is liquid at room temperature is
1 Pentane
2 Butane
3 Propane
4 Ethane
Explanation:
Conceptual Questions
CHXI13:HYDROCARBONS
317932
Assertion : Boiling point of alkanes increases with increase in molecular weight. Reason : van der Waals' forces increase with increase in molecular weight.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The greater the molecular mass of a substance, the larger the magnitude of van der Waals' forces of attraction between its molecules. Consequently, substances will have boiling point. So, option (1) is correct.
CHXI13:HYDROCARBONS
317933
Which of the following has the lowest boiling point?
317929
Assertion : Among isomeric pentanes, 2, 2 -dimethylpropane has highest boiling point. Reason : Branching affects the boiling point.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
As the branching increases, boiling point decreases. So, 2, 2-dimethylpropane has least boiling point.
CHXI13:HYDROCARBONS
317930
Which among the following molecules exhibits strong London forces?
1 neo-pentane
2 n-pentane
3 isobutane
4 isopentane
Explanation:
n-pentatne is a straight chain alkane, exhibits strong London forces as compared to other branched chain alkanes.
MHTCET - 2021
CHXI13:HYDROCARBONS
317931
Hydrocarbon which is liquid at room temperature is
1 Pentane
2 Butane
3 Propane
4 Ethane
Explanation:
Conceptual Questions
CHXI13:HYDROCARBONS
317932
Assertion : Boiling point of alkanes increases with increase in molecular weight. Reason : van der Waals' forces increase with increase in molecular weight.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The greater the molecular mass of a substance, the larger the magnitude of van der Waals' forces of attraction between its molecules. Consequently, substances will have boiling point. So, option (1) is correct.
CHXI13:HYDROCARBONS
317933
Which of the following has the lowest boiling point?
317929
Assertion : Among isomeric pentanes, 2, 2 -dimethylpropane has highest boiling point. Reason : Branching affects the boiling point.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
As the branching increases, boiling point decreases. So, 2, 2-dimethylpropane has least boiling point.
CHXI13:HYDROCARBONS
317930
Which among the following molecules exhibits strong London forces?
1 neo-pentane
2 n-pentane
3 isobutane
4 isopentane
Explanation:
n-pentatne is a straight chain alkane, exhibits strong London forces as compared to other branched chain alkanes.
MHTCET - 2021
CHXI13:HYDROCARBONS
317931
Hydrocarbon which is liquid at room temperature is
1 Pentane
2 Butane
3 Propane
4 Ethane
Explanation:
Conceptual Questions
CHXI13:HYDROCARBONS
317932
Assertion : Boiling point of alkanes increases with increase in molecular weight. Reason : van der Waals' forces increase with increase in molecular weight.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The greater the molecular mass of a substance, the larger the magnitude of van der Waals' forces of attraction between its molecules. Consequently, substances will have boiling point. So, option (1) is correct.
CHXI13:HYDROCARBONS
317933
Which of the following has the lowest boiling point?
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CHXI13:HYDROCARBONS
317929
Assertion : Among isomeric pentanes, 2, 2 -dimethylpropane has highest boiling point. Reason : Branching affects the boiling point.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
As the branching increases, boiling point decreases. So, 2, 2-dimethylpropane has least boiling point.
CHXI13:HYDROCARBONS
317930
Which among the following molecules exhibits strong London forces?
1 neo-pentane
2 n-pentane
3 isobutane
4 isopentane
Explanation:
n-pentatne is a straight chain alkane, exhibits strong London forces as compared to other branched chain alkanes.
MHTCET - 2021
CHXI13:HYDROCARBONS
317931
Hydrocarbon which is liquid at room temperature is
1 Pentane
2 Butane
3 Propane
4 Ethane
Explanation:
Conceptual Questions
CHXI13:HYDROCARBONS
317932
Assertion : Boiling point of alkanes increases with increase in molecular weight. Reason : van der Waals' forces increase with increase in molecular weight.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The greater the molecular mass of a substance, the larger the magnitude of van der Waals' forces of attraction between its molecules. Consequently, substances will have boiling point. So, option (1) is correct.
CHXI13:HYDROCARBONS
317933
Which of the following has the lowest boiling point?
317929
Assertion : Among isomeric pentanes, 2, 2 -dimethylpropane has highest boiling point. Reason : Branching affects the boiling point.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
As the branching increases, boiling point decreases. So, 2, 2-dimethylpropane has least boiling point.
CHXI13:HYDROCARBONS
317930
Which among the following molecules exhibits strong London forces?
1 neo-pentane
2 n-pentane
3 isobutane
4 isopentane
Explanation:
n-pentatne is a straight chain alkane, exhibits strong London forces as compared to other branched chain alkanes.
MHTCET - 2021
CHXI13:HYDROCARBONS
317931
Hydrocarbon which is liquid at room temperature is
1 Pentane
2 Butane
3 Propane
4 Ethane
Explanation:
Conceptual Questions
CHXI13:HYDROCARBONS
317932
Assertion : Boiling point of alkanes increases with increase in molecular weight. Reason : van der Waals' forces increase with increase in molecular weight.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The greater the molecular mass of a substance, the larger the magnitude of van der Waals' forces of attraction between its molecules. Consequently, substances will have boiling point. So, option (1) is correct.
CHXI13:HYDROCARBONS
317933
Which of the following has the lowest boiling point?