MCQ
For question, two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion : Smack is a by$-$product of heroin synthesis.
Reason: Heroin is an opium alkaloid.
  • A
    Both assertion and reason are true, and reason is the correct explanation of assertion.
  • B
    Both assertion and reason are true, but reason is not the correct explanation of assertion.
  • Assertion is true, but reason is false.
  • D
    Both assertion and reason are false.

Answer

Correct option: C.
Assertion is true, but reason is false.
Heroin is diamorphine or diacetylmorphine $\ce{-C_{17}H_{17} (OC_2H_3O_3)2NH}$, which is also called smack. Opium is semisynthetic opiate $($opium$-$derivative$)$ which is most dangerous of all the opiates. Heroin is formed from acetylation of morphine.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: Generally, a woman does not conceive during the lactation period.
Reason: The hormone 'prolactin' initiates and maintains lactation in a postpartum woman.
For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: Anemophily is non$-$directional.
Reason: Entomophily is highly specific and directional.
For question two statements are given $-$ one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion : No two species can occupy the same ecological niche in a habitat.
Reason : A habitat can contain only one ecological niche.
For question two statements are given $-$ one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion : Indiscriminate exploitation ofeconomically important wild plants may lead to their extinction.
Reason : Non $-$ conservation of their germplasm is responsible for this.
Transgenic animals are extensively used for all the following procedures except :
For question, two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion : Streptococcus pneumoniae and Haemophilus influenzae are responsible for causing infectious disease in human beings.
Reason: A healthy person acquires the infection by inhaling the droplets$/$aerosols released by an infected person.
For question two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: Maximum biodiversity occurs in temperate areas.
Reason: Temperate areas have favourable conditions for speciation and for supporting variety and number of organisms.
For question two statements are given $-$ one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion : Phytoplanktons grow in abundance in the profundal zone of lake.
Reason : Profundal zone is illuminated by light which supports growth of phytoplanktons.
Two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: Immobilised yeasts cause less fermentation.
Reason: Brewer's yeast produces beer not wine.
Human insulin is being commercially produced from transgenic species of $...........$