1 \(80 \%\) Petrol \(+20 \%\) Benzene + Small quantity of Ethanol
2 \(80 \%\) Petrol \(+20 \%\) Ethanol + Small quantity of Benzene
3 \(80 \%\) Petrol \(+20 \%\) Benzene + Small quantity of Petrol
4 \(50 \%\) Petrol \(+50 \%\) Ethanol + Small quantity of Benzene
Explanation:
A mixture of \(20 \%\) ethanol and \(80 \%\) gasoline (petrol) called power alcohol is used in internal combustion engines to drive power.
KCET - 2012
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323376
Assertion : Absolute alcohol is \(100 \%\) ethanol. Reason : The absolute alcohol boils at \(78.3^{\circ} \mathrm{C}\).
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:
Absolute alcohol is \(100 \%\) ethanol and is free from water or other impurities. Given reason is also true, but not the actual explanation. So the option (2) is correct.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323377
If ethanol dissolves in water then which of the following would be happened?
1 Absorption of heat and decrease in volume
2 Emission of heat and decrease in volume
3 Absorption of heat and increase in volume
4 Emission \({\text{n}}\) of heat and increase in volume
Explanation:
\(\left(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}+\mathrm{H}_{2} \mathrm{O}\right)\) shows positive deviation form Raoult's law, hence , absorbs heat and volume increases
1 \(80 \%\) Petrol \(+20 \%\) Benzene + Small quantity of Ethanol
2 \(80 \%\) Petrol \(+20 \%\) Ethanol + Small quantity of Benzene
3 \(80 \%\) Petrol \(+20 \%\) Benzene + Small quantity of Petrol
4 \(50 \%\) Petrol \(+50 \%\) Ethanol + Small quantity of Benzene
Explanation:
A mixture of \(20 \%\) ethanol and \(80 \%\) gasoline (petrol) called power alcohol is used in internal combustion engines to drive power.
KCET - 2012
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323376
Assertion : Absolute alcohol is \(100 \%\) ethanol. Reason : The absolute alcohol boils at \(78.3^{\circ} \mathrm{C}\).
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:
Absolute alcohol is \(100 \%\) ethanol and is free from water or other impurities. Given reason is also true, but not the actual explanation. So the option (2) is correct.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323377
If ethanol dissolves in water then which of the following would be happened?
1 Absorption of heat and decrease in volume
2 Emission of heat and decrease in volume
3 Absorption of heat and increase in volume
4 Emission \({\text{n}}\) of heat and increase in volume
Explanation:
\(\left(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}+\mathrm{H}_{2} \mathrm{O}\right)\) shows positive deviation form Raoult's law, hence , absorbs heat and volume increases
1 \(80 \%\) Petrol \(+20 \%\) Benzene + Small quantity of Ethanol
2 \(80 \%\) Petrol \(+20 \%\) Ethanol + Small quantity of Benzene
3 \(80 \%\) Petrol \(+20 \%\) Benzene + Small quantity of Petrol
4 \(50 \%\) Petrol \(+50 \%\) Ethanol + Small quantity of Benzene
Explanation:
A mixture of \(20 \%\) ethanol and \(80 \%\) gasoline (petrol) called power alcohol is used in internal combustion engines to drive power.
KCET - 2012
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323376
Assertion : Absolute alcohol is \(100 \%\) ethanol. Reason : The absolute alcohol boils at \(78.3^{\circ} \mathrm{C}\).
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:
Absolute alcohol is \(100 \%\) ethanol and is free from water or other impurities. Given reason is also true, but not the actual explanation. So the option (2) is correct.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323377
If ethanol dissolves in water then which of the following would be happened?
1 Absorption of heat and decrease in volume
2 Emission of heat and decrease in volume
3 Absorption of heat and increase in volume
4 Emission \({\text{n}}\) of heat and increase in volume
Explanation:
\(\left(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}+\mathrm{H}_{2} \mathrm{O}\right)\) shows positive deviation form Raoult's law, hence , absorbs heat and volume increases
1 \(80 \%\) Petrol \(+20 \%\) Benzene + Small quantity of Ethanol
2 \(80 \%\) Petrol \(+20 \%\) Ethanol + Small quantity of Benzene
3 \(80 \%\) Petrol \(+20 \%\) Benzene + Small quantity of Petrol
4 \(50 \%\) Petrol \(+50 \%\) Ethanol + Small quantity of Benzene
Explanation:
A mixture of \(20 \%\) ethanol and \(80 \%\) gasoline (petrol) called power alcohol is used in internal combustion engines to drive power.
KCET - 2012
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323376
Assertion : Absolute alcohol is \(100 \%\) ethanol. Reason : The absolute alcohol boils at \(78.3^{\circ} \mathrm{C}\).
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:
Absolute alcohol is \(100 \%\) ethanol and is free from water or other impurities. Given reason is also true, but not the actual explanation. So the option (2) is correct.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323377
If ethanol dissolves in water then which of the following would be happened?
1 Absorption of heat and decrease in volume
2 Emission of heat and decrease in volume
3 Absorption of heat and increase in volume
4 Emission \({\text{n}}\) of heat and increase in volume
Explanation:
\(\left(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}+\mathrm{H}_{2} \mathrm{O}\right)\) shows positive deviation form Raoult's law, hence , absorbs heat and volume increases
1 \(80 \%\) Petrol \(+20 \%\) Benzene + Small quantity of Ethanol
2 \(80 \%\) Petrol \(+20 \%\) Ethanol + Small quantity of Benzene
3 \(80 \%\) Petrol \(+20 \%\) Benzene + Small quantity of Petrol
4 \(50 \%\) Petrol \(+50 \%\) Ethanol + Small quantity of Benzene
Explanation:
A mixture of \(20 \%\) ethanol and \(80 \%\) gasoline (petrol) called power alcohol is used in internal combustion engines to drive power.
KCET - 2012
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323376
Assertion : Absolute alcohol is \(100 \%\) ethanol. Reason : The absolute alcohol boils at \(78.3^{\circ} \mathrm{C}\).
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:
Absolute alcohol is \(100 \%\) ethanol and is free from water or other impurities. Given reason is also true, but not the actual explanation. So the option (2) is correct.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323377
If ethanol dissolves in water then which of the following would be happened?
1 Absorption of heat and decrease in volume
2 Emission of heat and decrease in volume
3 Absorption of heat and increase in volume
4 Emission \({\text{n}}\) of heat and increase in volume
Explanation:
\(\left(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}+\mathrm{H}_{2} \mathrm{O}\right)\) shows positive deviation form Raoult's law, hence , absorbs heat and volume increases