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Assertion (A): wedge(m(H^(o+))) and wedg...

Assertion `(A): wedge_(m(H^(o+)))` and `wedge_(m(overset(c)(O)H))` ions are very much higher than those of other ions.
Reason `(R): `It is due to proton jump from one water molecule to another resulting in a more rapid transfer of positive charge form one region to another.
(a)If both `(A)` and `(R)` are correct, and `(R)` is the correct explanation of `(A)`.
(b)If both `(A)` and `(R)` are correct, but `(R)` is not the correct explanation of `(A)`.
(c)If `(A)` is correct, but `(R)` is incorrect.
(d)If `(A)` is incorrect, `(R)` is correct.

A

(i) only

B

(ii) only

C

(iii) only

D

(i),(ii) and (iii)

Text Solution

Verified by Experts

The correct Answer is:
C
Kigelia pinnata (sausage tree) is an example of chiropterophilous flower. In chiropterphily, cross pollination is performed by bats. Chiropterophilous flowers are dull-coloured with strong fermenting or fruit odour, abundant nectar and pollen grains.
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NCERT FINGERTIPS ENGLISH-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Sexual Reproduction In Flowering Plants
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  2. Read the given statements and select the correct option. Statement 1...

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  3. Assertion (A): wedge(m(H^(o+))) and wedge(m(overset(c)(O)H)) ions are ...

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  4. Choose the mismatched pair.

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  5. Match column I with column II and select the correct option from the g...

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  6. Pollen kitt is generally found in

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  7. Match column I with column II and select the correct option from the g...

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  8. In ul((i)) conditions, both male and female flowers are borne on same ...

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  9. Flowering plants have developed certain outbredding devices to discour...

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  10. Which of these is a condition that makes flowers invariably autogamous...

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  11. Heterostyly as a contrivance for cross-pollination is found in

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  12. Match column I with column II and select the corect option from the gi...

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  13. Which of the following labelled part of gynoecium determines the compa...

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  14. part of the gynoecium which receives the pollen is called

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  15. Refer to the given figure of egg apparatus showing entry of pollen tub...

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  16. Growth of part X is

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  17. Given below are the events that are observed in an artificial hybridis...

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  18. During the process of fertilisation the pollen tube of the pollen grai...

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  19. Fusion of one of the male gametes with egg nucleus is referred to as

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  20. Which of the following statements is/are correct ? (i) Endothecium ...

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