Final product formed on reduction of glycerol by hydriodic acid is
The order of decreasing stability of the carbanions (CH₃)₃C-(I) ; (CH₃)₂CH-(II) ; CH₃CH₂-(III) ; C₆H₅CH₂-(IV) is
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Which of the following contains three pairs of electrons in the valence shell?
Amongst the following compounds which can be most easily sulphonated is
The most reactive among the following towards sulphonation is
Benzene reacts with CH₃COCl in the presence of AlCl₃ to give
In which of the following pairs, both molecules possess dipole moment?
H2 dissociates in the presence of light only when Hg vapours are present. It is an example of
Which of the following gas molecule has the maximum specific heat at constant pressure?
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): In a dry cell zinc acts as cathode and carbon rod as anode.
Reason(R): A dry cell has a potential of nearly 1.0 V.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Iron is coated with zinc in galvanisation process.
Reason(R): Zinc works as cathodic protection against rusting of iron.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Respiration is a chemical change which is the opposite of photosynthesis.
Reason(R): During respiration glucose is synthesised in our system .
Rate of formation of SO3 in the following reaction
2SO2 + O2 → 2SO3
is 100g min−1, Hence, rate of disappearance of O2 is:
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Cuprous ion is colourless while cupric ion is blue in aqueous solution.
Reason(R): Cuprous ion has unpaired electron while cupric ion don't.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): When CoCl3.5NH3 is dissolved in water and treated with excess AgNO3 solution , it gives only two moles of AgCl.
Reason(R): Third chloro is hydrogen bonded to NH3.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): All F-S-F angle in SF4 is less than 180 degrees.
Reason(R): The lone pair-bond pair repulsion is weaker than bond pair-bond pair repulsion.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Boiling points of cis isomers are higher than trans-isomers.
Reason(R): Dipole moments of cis isomers are higher than trans isomers.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): R-C ≡ O+ is more stable than R-C+ = O.
Reason(R): Resonance in carbonyl compound provides C+ and O-.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): In titration of strong acid and strong base, we can use phenol-phthalein as indicator.
Reason(R): At the end point pH of solution is in between 8-10.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Carboxylic acids do nt give characteristic reactions of the carbonyl group.
Reason (R): The carbonyl carbon of carboxylic acid is involved in resonance.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Industrial method of preparation of H₂O₂ involves 2-ethylanthra quinol.
Reason(R): Process becomes cyclic.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): [Pt(NH2)2Cl2] is tetrahedral.
Reason(R): The oxidation state of platinum is +2.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): The overall reactivity of acid derivative follows the order:
Acetyl Chloride > Acid Anhyaride > Acid ester > Acid Amide.
Reason(R): Reactivity order as per the basicity order of leaving group Cl- > RCOO- > RO - > NH2-.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): All enzymes are proteins but all proteins are not enzymes.
Reason(R): Keratin is an enzymes.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Narcotics are opium derivatives.
Reason(R): Narcotic is an analgesic.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Conc. H2SO4 reacts with KCl to give Cl2 gas.
Reason(R): HCl cannot be oxidising by H2SO4.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Ethanol is liquid but dimethyl ether is a gas.
Reason(R): In ethanol, carbon as well as oxygen are sp3 hybridised.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): The mobility of sodium ion is lower than that of potassium ion.
Reason(R): The ionic mobilities depend upon the effective radius of the ion.
3 videos|44 docs|66 tests
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3 videos|44 docs|66 tests
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