set 3 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 3 EXERCISES
The following question based on atomic structure, molecules and nuclear chemistry topic of general science mcq
(a) Number of protons is same but number of neutrons is different
(b) Number of both protons and neutrons is same
(c) Number of neutrons is same but number of protons is different
(d) Number of both protons and neutrons is different
The correct answers to the above question in:
Answer: (a)
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Read more chemistry basic Based General Science Questions and Answers
Question : 1
Which of the following statements is /are correct? According to Dalton’s theory
- An atom is the smallest particle of matter
- An atom is the smallest particle of an element
- An atom is the smallest indivisible particle of an element that can take part in a chemical change
- An atom is the radioactive emission
a) A, C and D
b) B, C and D
c) A, B and C
d) A and D
Answer »Answer: (c)
Question : 2
Heavy water implies
a) deuterated water
b) water which contains SO42- and CI– of calcium and magnesium
c) water which is used in heavy industries such as thermal power plants
d) water which has maximum density
Answer »Answer: (a)
Question : 3
The atomic nucleus was discovered by
a) Dalton
b) Einstein
c) Rutherford
d) Thomson
Answer »Answer: (c)
Question : 4
A single type of atom is found in
a) Mixture of minerals
b) Native elements
c) Compounds of minerals
d) None of the above
Answer »Answer: (b)
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