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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Comments

  • sandeep
    Reply

    gud work but need some more thankyou gk today

  • KALAICHELVAN . A
    Reply

    Very Good . Please publish SCIENCE related in zoology, Botany , Physics with life science question and answer

  • Pradeep
    Reply

    Sir, could you please explain, how rivers contribute more to the sea salt ?

  • Manoj Banga
    Reply

    GOOD WORK BUT GIVE SOME MORE QUES,

  • dhandapani
    Reply

    plz explain how rivers are the major reason for sea salt.

  • mohamed
    Reply

    its good work

  • anirban sanki
    Reply

    its good work