# RRB NTPC Questions on Chemical Reactions & Equations PDF

0
954

### 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.

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

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$_{4}$

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