Study the following statements with reference to drugs and choose the incorrect ones.
(i) Barbiturates cause the sleeplessness.
(ii) Opiods are obtained from the leaves of Erythroxylum coca.
(iii) Morphine is a very effective sedative and pain killer.
(iv) Cocaine is obtained from hemp plant.

i, ii, iii

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ii, iii, iv

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i, iii, iv

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i, ii, iv

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Solution

The correct option is D i, ii, iv
(i) Barbiturates are sedative hypnotics that have sleep inducing effect.
(ii) Opiates are obtained from opium, the dried latex of unripen capsular fruits of poppy plant Papaver somniferum.
(iii) Morphine is a strong sedative and analgesic (pain killer) and therefore given to the patients who have undergone surgery.
(Iv) Cocaine is natural stimulant obtained from Erythroxylon coca.
Hence, only statement (iii) is correct.
So, the correct answer is 'i, ii, iv'.

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Similar questions

Q. Study the following statements with reference to drugs and choose the correct one.

(I) Barbiturates cause sleeplessness.
(II) Opioids are obtained from the leaves of Erythroxylum coca
(III) Morphine is a very effective sedative and pain killer.
(IV) Cocaine is obtained from Indian hemp plant.

Question 4

Read the following statements with reference to soil.

(i) Weathering is a very fast process of soil formation,
(ii) Percolation of water is faster in sandy soils.
(iii) Loamy soil contains only sand and clay.
(iv) Topsoil contains the maximum amount of humus.

Choose the correct statements from the above
(a) (ii) and (iv)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (i) and (ii)

Choose the incorrect statement/statements from the following:

(i) Atomic mass of hydrogen is 1 u.
(ii) Atomic mass of helium is 2 u.
(iii) Atomic mass of chlorine is 17 u.
(iv) Atomic mass of phosphorous is 31 u.

Which of the following are parts involved in the sexual reproduction in plants?
(i) Flower
(ii) Seed
(iii) Fruit
(iv) Branch
Choose the correct answer from below
a (i) and (ii)
b (i), (ii) and (iii)
c (iii) and (iv)
d (ii),(iii) and (iv)

Question 4

Paheli gave the following ill effects of the practice of burning dried leaves and other plant parts.

(a) Burning degrades the soil.

(b) Burning produces harmful gases/fumes.

(d) Lot of heat is generated unnecessarily.

The correct reasons of why we should not burn leaves are

(a) i, ii and iv

(b) i, ii, iii and iv

(d) ii, iii, and iv

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Study the following statements with reference to drugs and choose the incorrect ones.(i) Barbiturates cause the sleeplessness.(ii) Opiods are obtained from the leaves of Erythroxylum coca. (iii) Morphine is a very effective sedative and pain killer.(iv) Cocaine is obtained from hemp plant.

Study the following statements with reference to drugs and choose the incorrect ones.
(i) Barbiturates cause the sleeplessness.
(ii) Opiods are obtained from the leaves of Erythroxylum coca.
(iii) Morphine is a very effective sedative and pain killer.
(iv) Cocaine is obtained from hemp plant.