Which one of the following type of medicines is used for treating indigestion?
- A.Analgesic
- B.Antiseptic
- C.Antibiotic
- D.Antacid
Correct answer
Explanation
The correct answer is D, Antacid. Indigestion and heartburn are usually caused by too much acid in the stomach, and an antacid is a mild base that neutralises this extra hydrochloric acid. The stomach makes hydrochloric acid to help digest proteins, but when it is produced in excess it causes a burning feeling, pain and discomfort. Common antacids include magnesium hydroxide (milk of magnesia), aluminium hydroxide and sodium hydrogen carbonate (baking soda). Their reaction with the acid is a simple neutralisation that gives a salt and water. Option A is wrong because an analgesic, such as paracetamol or aspirin, relieves pain and does not remove the cause of acidity. Option B is wrong because an antiseptic, such as Dettol or tincture of iodine, is applied on wounds and skin to stop the growth of microbes. Option C is wrong because an antibiotic, such as penicillin, kills or stops bacteria that cause infections and has no role in neutralising stomach acid. Exam tip: antacid = neutralises acid; analgesic = pain; antipyretic = fever; antiseptic = on living tissue.
Practice Questions
View allThe correct order of atomic radius of Li, Na, Be and O is
- A.Na > Li > Be > O
- B.Na > Be > Li > O
- C.Be > Li > Na > O
- D.O > Be > Li > Na
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Two trends of the periodic table decide the order. Going down a group, atomic radius increases because each new period adds an electron shell; so sodium, in period 3, is larger than lithium, in period 2, of the same group 1.
Read the full explanation →Why does the Rough Endoplasmic Reticulum look 'rough' under a microscope ?
- A.Due to the presence of ribosomes on its surface
- B.Due to the absence of ribosomes on its surface
- C.Due to the presence of lysosomes on its surface
- D.Due to the presence of mitochondria on its surface
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The endoplasmic reticulum (ER) is a network of membrane tubes and sacs inside the cell. Part of it is studded on the outside with tiny granules called ribosomes, which give it a dotted, rough look under an electron microscope; this part is the rough ER.
Read the full explanation →An aqueous solution of an acid conducts electricity. This is because
- A.It contains hydrogen ion
- B.It contains water molecules
- C.Electricity passes through it
- D.It generates electricity
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When an acid such as hydrochloric acid dissolves in water, it splits into ions: hydrogen ions (H⁺, which join water molecules as hydronium ions, H₃O⁺) and negative ions such as chloride (Cl⁻).
Read the full explanation →A wire of copper having length l and area of cross-section A is taken and a current I is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be
- A.P
- B.< P
- C.> P
- D.2P
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The power turned into heat in a wire carrying a current I is P = I²R, and the resistance of a wire is R = ρl/A, where ρ is the resistivity of its material.
Read the full explanation →Myopia is also known as :
- A.Far-sightedness
- B.Near-sightedness
- C.Cataract
- D.Presbyopia
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A person with myopia sees nearby objects clearly but finds distant objects blurred, which is why the defect is called near-sightedness or short-sightedness.
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