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1 Inorganic Chemistry MCQs

The coloured glassy mass formed in the borax bead test is due to the formation of ?

  • Metal borate
  • Metal metaborate
  • Metal boride
  • Metal silicate
0 Comments
Correct Answer: B. Metal metaborate

Explanation:

The borax bead test is a traditional qualitative analysis method used in inorganic ... Read More Details

2 Physical Chemistry MCQs

If the temperature of gallium arsenide (GaAs) is increased, its electrical conductivity will ?

  • Decrease
  • Increase
  • Remain constant
  • First decrease then increase
0 Comments
Correct Answer: B. Increase

Explanation:

Gallium arsenide (GaAs) is a semiconductor compound formed from gallium (Ga) and arsenic ... Read More Details

3 Inorganic Chemistry MCQs

Which of the following compounds decomposes to produce litharge (PbO)?

  • Pb₂O
  • Pb₃O₄
  • PbO₂
  • All of the above
0 Comments
Correct Answer: D. All of the above

Explanation:

Litharge (PbO) is the monoxide of lead, a yellow to reddish crystalline compound ... Read More Details

4 Inorganic Chemistry MCQs

Which of the following compounds is known as metasilicic acid?

  • H₂SnO₃
  • H₂SiO₃
  • H₃AsO₄
  • H₃SbO₄
0 Comments
Correct Answer: B. H₂SiO₃

Explanation:

Metasilicic acid (H₂SiO₃) is one of the hydrated forms of silicic acid, a ... Read More Details

5 Environmental Chemistry MCQs

Boron in soil is considered a micronutrient essential for _____________?

  • Soil porosity
  • Proper growth of plants
  • Alkalinity of soil
  • All of the above
0 Comments
Correct Answer: B. Proper growth of plants

Explanation:

Boron is an essential micronutrient required in very small amounts by plants for ... Read More Details

6 Inorganic Chemistry MCQs

Which substance is found in the dried-up lakes of Tibet and California?

  • Tincal
  • Boric acid
  • Calcium carbonate
  • Colemanite
0 Comments
Correct Answer: A. Tincal

Explanation:

Tincal, commonly known as natural borax, is a hydrated sodium borate mineral with ... Read More Details

7 Inorganic Chemistry MCQs

Which of the following elements does not give the Borax bead test?

  • Cu (Copper)
  • Cr (Chromium)
  • Ni (Nickel)
  • Al (Aluminium)
0 Comments
Correct Answer: D. Al (Aluminium)

Explanation:

The Borax bead test is a classic qualitative analysis method used in inorganic ... Read More Details

8 Inorganic Chemistry MCQs

Which metal is used in the thermite process because of its high chemical activity?

  • Iron
  • Copper
  • Aluminium
  • Zinc
0 Comments
Correct Answer: C. Aluminium

Explanation:

The thermite process, also known as the alumino-thermic process, is a metallurgical method ... Read More Details

9 Inorganic Chemistry MCQs

Which of the following elements shows the inert pair effect?

  • Boron
  • Carbon
  • Silicon
  • Tin
0 Comments
Correct Answer: D. Tin

Explanation:

The inert pair effect refers to the tendency of the two outermost s-electrons ... Read More Details

10 Inorganic Chemistry MCQs

Tincal is a mineral of which element?

  • Al (Aluminium)
  • Si (Silicon)
  • B (Boron)
  • C (Carbon)
0 Comments
Correct Answer: C. B (Boron)

Explanation:

Tincal is a naturally occurring mineral that serves as an important source of ... Read More Details

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