Basic Chemistry Questions & Answers
21. Which among the following gas was leaked at Bhopal during the Bhopal gas tragedy at 2-3 December 1984?
[A]Methyl isocyanide
[B]Methyl isocyanate
[C]methyl isochloride
[D]methyl isochlorate
Methyl isocyanate
22. Which among the following acids is abundant in Grapes, Bananas and Tamarind?
[A]Lactic Acid
[B]Oxalic Acid
[C]Salicylic Acid
[D]Tartaric Acid
Tartaric Acid
23. Which among the following are constituents of Brass?
[A]Zinc and Copper
[B]Iron and Zinc
[C]Copper and Nickel
[D]Iron and Copper
Zinc and Copper
24. Identify the non-metallic mineral from the given options:
[A]Manganese
[B]Magnesium
[C]Silica
[D]Bauxite
Silica
25. Which among the following is called Laughing Gas popularly?
[A]Nitric oxide
[B]Nitrous oxide
[C]Nitrogen penta oxide
[D]Nitrogen
Nitrous oxide
26. White Phosphorous is represented by which among the following symbols?
[A]P1
[B]P2
[C]P3
[D]P4
P4
The most important form of elemental phosphorus from the perspective of applications and chemical literature is white phosphorus. It consists of
tetrahedral P4 molecules, in which each atom is bound to the other three atoms by a single bond. This P4 tetrahedron is also present in liquid and
gaseous phosphorus up to the temperature of 800 °C when it starts decomposing to P2 molecules
27. Identify the thermosetting plastic from the given options:
[A]Polythene
[B]Bakelite
[C]Polyvincychloride
[D]Casseine
Bakelite
28. Which among the following happens in an oxidation reaction ?
[A]Electrons are gained
[B]Electrons are lost
[C]Protons are gained
[D]Protons are lost
Electrons are lost
29. Which among the following is the correct decreasing of bioelements in Human Body?
[A]oxygen, hydrogen, Carbon, nitrogen, calcium, and phosphorus
[B]oxygen, carbon, nitrogen, hydrogen, calcium, and phosphorus
[C]oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus
[D]carbon, oxygen, hydrogen, nitrogen, calcium, and phosphorus
oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus
30. The aqueous solution of which among the following acids is called Vinegar?
[A]Oxalic acid
[B]Citric acid
[C]Acetic acid
[D]Hydrochloric acid
Acetic acid
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sandeep
April 14, 2012 at 12:45 pmgud work but need some more thankyou gk today
KALAICHELVAN . A
April 14, 2012 at 6:35 pmVery Good . Please publish SCIENCE related in zoology, Botany , Physics with life science question and answer
Pradeep
April 28, 2012 at 4:11 pmSir, could you please explain, how rivers contribute more to the sea salt ?
Manoj Banga
August 4, 2012 at 10:59 amGOOD WORK BUT GIVE SOME MORE QUES,
dhandapani
March 12, 2013 at 3:03 pmplz explain how rivers are the major reason for sea salt.
mohamed
March 17, 2015 at 5:40 pmits good work
anirban sanki
January 28, 2018 at 12:33 pmits good work