Assertion: Cocaine has a potent stimulating action on the central nervous system,producing a sense of euphoria and increased energy.
Reason: Injecting the microbes intentionally during immunisation or infectious organisms gaining access into the body during natural infection induces active immunity.

  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • B
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • C
    If the Assertion is correct but Reason is incorrect.
  • D
    If both the Assertion and Reason are incorrect.

Explore More

Similar Questions

Given diseases: Pneumonia,Plague,Diphtheria,Common cold,Malaria,Ringworm,Amoebiasis,Dysentery,Typhoid,$AIDS$.
$\rightarrow$ Number of bacterial diseases $- P$
$\rightarrow$ Number of viral diseases $- Q$
$\rightarrow$ Number of protozoan diseases $- R$
$\rightarrow$ Number of fungal diseases $- S$
Select the correct option for $P, Q, R$ and $S$.

Match List-$I$ with List-$II$ and select the correct option.
List-$I$List-$II$
$(a)$ Gambusia$(i)$ Typhoid vaccine
$(b)$ Sporozoite$(ii)$ Cancer
$(c)$ $TAB$$(iii)$ Allergy
$(d)$ Pollen grains$(iv)$ Mosquito larvae
$(e)$ Smoking$(v)$ Malaria

Select the correct pairs of diseases and their respective symptoms.
$i$. Elephantiasis - swollen limbs especially legs, enlargement of lymph vessels and lymph nodes.
$ii$. Malaria - Infected skin which shows enlarged red rings, nails become thick, discoloured and disfigured.
$iii$. Dermatophytosis - Cyclic high fever followed by sweating and sudden shivering every two days or three days.
$iv$. Pneumonia - Dyspnea, cough produces yellow or greenish sputum or phlegm.
Choose the correct option.

Which is the particular type of drug that is obtained from the plant whose one flowering branch is shown here?

Match the diseases in Column $I$ with the type of microbe causing them in Column $II$.
Column $I$Column $II$
$i$. Elephantiasis$a$. Virus
$ii$. Typhoid$b$. Nematode parasite
$iii$. Dermatophytosis$c$. Gram -ve bacteria
$iv$. Dengue$d$. Protist
$v$. Malaria$e$. Fungus

Choose the correct option.

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo