RRB NTPC Questions on Chemical Reactions & Equations
Download RRB NTPC Chemical Reactions & Equations Questions PDF. Top 10 RRB NTPC questions based on asked questions in previous exam papers very important for the Railway NTPC exam.
Download RRB NTPC Chemical Reactions & Equations Questions PDF
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Question 1: Chemical reactions that release energy by light or heat are called …
a) Endothermic Reaction
b) Redox Reaction
c) Exothermic Reaction
d) Ectothermic Reaction
Question 2: Which type of reaction produces the most harmful radiation?
a) Fusion reaction
b) Fission reaction
c) Chemical reaction
d) Photo-Chemical reaction
Question 3: Which element group is most reactive of all the metallic elements?
a) Alkali metals
b) Inert gases
c) Rare Earths
d) Radioactive Elements
e) None of these
Question 4: An element A forms an oxide with formula $A_{3}O_{4}$. What is the valency of element A ?
a) 3
b) 2
c) 1
d) 4
Question 5: What is the chemical formula of Aspirin?
a) C$_{6}$H$_{6}$O$_{2}$
b) C$_{9}$H$_{2}$O$_{8}$
c) C$_{4}$H$_{8}$O$_{2}$
d) C$_{9}$H$_{8}$O$_{4}$
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Question 6: $SnCl_2 + 2HgCl_2 \rightarrow Hg_2Cl_2 + SnCl_4$In the given reaction:
a) $HgCl_2$ is oxidised
b) $SnCl_2$ is oxidised
c) $Hg_2Cl_2$ is oxidised
d) $SnCl_2$ is reduced
Question 7: In the reaction $H_2O_2 + Cl_2 \rightarrow 2HCl + O_2, H_2O_2$ acts as:
a) an acid
b) an oxidising agent
c) a reducing agent
d) a base
Question 8: Bleaching action of Chlorine is due to which reaction?
a) Oxidation
b) Hydrolysis
c) Redox
d) Decomposition
Question 9: The reaction of Copper Sulphate and Iron produces Iron Sulphate and __________.
a) Vinegar
b) Ash
c) Baking Soda
d) Copper
Question 10: In the following reaction, fill in the blank.
Acid + Base → _______ + Water
a) Carbon dioxide
b) Metal Oxide
c) Hydrogen Gas
d) Salt
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Answers & Solutions:
1) Answer (C)
2) Answer (B)
3) Answer (A)
4) Answer (D)
5) Answer (D)
6) Answer (B)
7) Answer (C)
8) Answer (A)
9) Answer (D)
10) Answer (D)
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