CBSE
Multiple Choice QuestionsWhich of the following alkenes will give same product by any method out of hydration, hydroboration-oxidation and oxymercuration-demercuration?
CH3CH=CH2
CH3CH=CHCH3
CH3CH(CH3)CH=CH2
Assertion: Saturated hydrocarbons are chemically less reactive.
Reason : All isomeric paraffins have same parent name.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion: Chloroform is stored in dark coloured bottles.
Reason: Chronic chloroform exposure may cause damage to liver and kidneys.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
What is 'A.' in the following reaction?
The compound which have conjugate double bond :
butyne
butylene
isobutylene
butadiene
Assertion : Staggered conformation of ethane is 12.5 kJ mol-1 more stable than the eclipsed conformation.
Reason : The two conformations of ethane cannot be separated at room temperature.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
The compound formed by the ozonolysis of acetylene :
glycol
acetic acid
ethylene ozonide
glyoxal
The heat liberated when 1.89 g of benzoic acid is burnt in a bomb calorimeter at 25°C and it increases the temperature of 18.94 kg of water by 0.632°C. If the specific heat of water at 25°C is 0.998 cal/g-deg, the value of the heat of combustion of benzoic acid is
881.1 kcal
771.2 kcal
981.1 kcal
871.2 kcal
The IUPAC name of the given compound is (CH3)3CCH2C(CH3)3
2, 3,4,4-tetramethylpentane
1, 2, 2, 4-tetramethylpentene
2,2,4, 4-tetramethylpentane
3, 3-dimethylpentane.
The C-H bond energy in ethane , ethene and ethyne :
more in ethene
more in ethane
more in ethyne
same in all these
