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Miscellaneous And Useful Chemical Compounds (Part-II)
📆 November 1, 2024
Total Questions: 50
1.
Formic acid is produced by
[S.S.C. Online Graduate Level (T-I) 31.08.2016 (Shift-III)]
(a) White ants
(b) Cockroache
(c) Red ants
(d) Mosquitoes
Correct Answer:
(c) Red ants
Solution:
Formic acid is also known as methanoic acid (HCOOH). It is an organic compound found naturally in the stings of red ants, bees, scorpions, and wasps. When an ant (especially a red ant) stings, it causes intense burning. This burning is due to formic acid itself.
2.
Which of the following acids is found in ant stings?
[S.S.C. JE Electrical Exam 10.12.2020 (Shift-II)]
(a) Methanoic acid
(b) Tartaric acid
(c) Oxalic acid
(d) Acetic acid
Correct Answer:
(a) Methanoic acid
Solution:
Formic acid is also known as methanoic acid (HCOOH). It is an organic compound found naturally in the stings of red ants, bees, scorpions, and wasps. When an ant (especially a red ant) stings, it causes intense burning. This burning is due to formic acid itself.
3.
What chemical is injected into a person’s body when an ant bites?
[S.S.C. Online CHSL (T-I) 29.01.2017 (Shift-II)]
(a) Formic Acid
(b) Acetic Acid
(c) Tartaric Acid
(d) Citric Acid
Correct Answer:
(a) Formic Acid
Solution:
Formic acid is also known as methanoic acid (HCOOH). It is an organic compound found naturally in the stings of red ants, bees, scorpions, and wasps. When an ant (especially a red ant) stings, it causes intense burning. This burning is due to formic acid itself.
4.
Primarily, an ant’s sting has which of the following?
[S.S.C. Online C.H.S.L. (T-I) 19.04.2021 (Shift-III)]
(a) Tartaric acid
(b) Magnesium hydroxide
(c) Formic acid
(d) Citric acid
Correct Answer:
(c) Formic acid
Solution:
Formic acid is also known as methanoic acid (HCOOH). It is an organic compound found naturally in the stings of red ants, bees, scorpions, and wasps. When an ant (especially a red ant) stings, it causes intense burning. This burning is due to formic acid itself.
5.
Which acid is released when an ant bites?
[S.S.C. Online Graduate Level (T-I) 8.08.2017 (Shift-I)]
(a) Hydrochloric acid
(b) Formic acid
(c) Acetic acid
(d) Phosphoric acid
Correct Answer:
(b) Formic acid
Solution:
Formic acid is also known as methanoic acid (HCOOH). It is an organic compound found naturally in the stings of red ants, bees, scorpions, and wasps. When an ant (especially a red ant) stings, it causes intense burning. This burning is due to formic acid itself.
6.
Bee sting contains
[S.S.C. Online Graduate Level (T-I) 3.09.2016 (Shift-III)]
(a) An acidic liquid
(b) a salt solution
(c) an alkaline liquid
(d) a corrosive liquid
Correct Answer:
(a) An acidic liquid
Solution:
Bee stings contain acidic liquid, which is made up of formic acid.
7.
Why does carbon tetrachloride have no dipole moment?
[S.S.C. Online CHSL (T-I) 18.01.2017 (Shift-II)]
(a) Because of the same size of Carbon and Chlorine atoms
(b) Because of the regular tetrahedral structure
(c) Because of the planar structure
(d) Because of similar electron affinities of carbon and Chlorine
Correct Answer:
(b) Because of the regular tetrahedral structure
Solution:
Carbon tetrachloride (CCl₄) has no dipole moment due to its regular tetrahedral structure.
8.
Which one has the highest electronegativity among the following elements?
[S.S.C. Online CHSL (T-I) 18.01.2017 (Shift-II)]
(a) Gallium
(b) Sodium
(c) Arsenic
(d) Cesium
Correct Answer:
(c) Arsenic
Solution:
Arsenic has the highest electronegativity compared to gallium, sodium, and cesium. The electronegativity of arsenic is 2.18, that of cesium and sodium is 0.79 and 0.93 respectively, and that of gallium is 1.81.
9.
Which one of the following is not an inert gas?
[S.S.C. Online Stenographer 14.09.2017 (Shift-I)]
(a) Radon
(b) Argon
(c) Carbon
(d) Neon
Correct Answer:
(c) Carbon
Solution:
Carbon is not included in the group of inert gases. The inert gas is known as the noble gas, which includes the following elements - Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn), etc.
10.
The transfer of minerals from topsoil to subsoil through soil-water is called—
[S.S.C. Online Graduate Level (T-I) 31.08.2016 (Shift-I)]
(a) Percolation
(b) Conduction
(c) Leaching
(d) Transpiration
Correct Answer:
(c) Leaching
Solution:
Leaching is the process in which minerals and other nutrients leak from the topsoil (the top layer of the soil) to the lower layers by the soil water.
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