Chemistry Mcqs

Which one of the following alcohol has greater boiling point___________________?

• (A)  ethanol
• (B)  ethylene glaycol
• (C)  glycerol
• (D)  methanol

Answer

Submitted By :Ali Uppal

Which law states that the volume of a given amount of gas held at constant pressure is directly proportional to the Kelvin temperature?

• (A)  Charles’ Law
• (B)  Avogadro’s Law
• (C)  Graham’s Law
• (D)  Boyle’s law

Answer

Submitted By :Ali Uppal

Which law states that “equal volumes of all gases, at the same temperature and pressure, have the same number of molecules?

• (A)  Boyle’s law
• (B)  Charles’ law
• (C)  Gay-Lussac’s law
• (D)  Avogadro’s law

Answer

Submitted By :Ali Uppal

Which of the following noble gases is abundant in air?

• (A)  Neon
• (B)  Helium
• (C)  Argon
• (D)  Methane

Answer

Submitted By :Ali Uppal

Which of the following noble gases is not present in atmosphere?

• (A)  Argon
• (B)  Helium
• (C)  Radon
• (D)  Xenon

Answer

Submitted By :Ali Uppal

The easy way of balancing the chemical equation is_________?

• (A)  according to atom’s atomic number.
• (B)  According to atom’s atomic mass.
• (C)  First we balance Metal than non-metal than Hydrogen than Oxygen.
• (D)  None of the above

Answer

Submitted By :Ali Uppal

Which one of the following is also known as lactic acid ?

• (A)  3-Hydroxy propanoic acid
• (B)  2-Hydroxy propanoic acid
• (C)  2-hydroxy butanoic acid
• (D)  3-hydroxy butanoic acid

Answer

Submitted By :Ali Uppal

Ethers show functional group isomerism with __________________?

• (A)  aldehydes
• (B)  ketones
• (C)  alcohols
• (D)  carboxylic acid

Answer

Submitted By :Ali Uppal

Which one of the following compound does not have – OH group___________________?

• (A)  ethylene glycol
• (B)  glycerol
• (C)  picric acid
• (D)  ethyl acetate

Answer

Submitted By :Ali Uppal

When alcohol reacts with phosphorous halides it geive____________________?

• (A)  alkyl halides
• (B)  alkyl amine
• (C)  alkanes
• (D)  alkynes

Answer

Submitted By :Ali Uppal