Chemistry In Everyday Life(12th Grade > Chemistry ) Questions and Answers
Explanation:-
Answer: Option C. -> prostaglandins:
C
Aspirin inhibits the synthesis of chemicals known as prostaglandins which stimulate inflammation in the tissue and cause pain. These drugs are effective in relieving skeletal pain such as that due to arthritis.
Explanation:-
Answer: Option B. -> carry message between two neurons or between neurons and muscles:
B
In the body, message between two neurons and that between neurons to muscles is communicated through certain chemicals. These chemicals, known as chemical messengers are received at the binding sites of receptor proteins.
Explanation:-
Answer: Option B. -> Only statement 2 is correct:
B
Antibiotics are used to kill bacteria and microorganisms. They are usually taken orally or injected.
Antiseptics are used just to inhibit or prevent bacterial growth and not to kill them. They are used by applying on the skin. Dettol is antiseptic.
Explanation:-
Answer: Option C. -> (iii) and (i):
C
Soap forms scum with hard water but detergent does not form any scum. Hence statement (ii) is incorrect.