set 1 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) Nitrogen
(b) Oxygen
(c) Carbon
(d) Argon
The correct answers to the above question in:
Answer: (a)
Discuss Form
Read more chemistry basic Based General Science Questions and Answers
Question : 1
The total number of atoms represented by the compound CuSO4 .5H2O is
a) 21
b) 5
c) 27
d) 8
Answer »Answer: (a)
1 atom of Cu + 1 atom of sulphur + 9 atoms of oxygen + 10 atoms of hydrogen.
The total number of atoms in the compound is 21.
Question : 2
Which of the following is not a basic particle of an element?
a) A molecule
b) An ion
c) An atom
d) None of these
Answer »Answer: (a)
Question : 3
The molecular formula P2O5 means that
a) there are twice as many P atoms in the molecule as there are O atoms
b) the ratio of the mass of P to the mass of O in the molecule is 2:5
c) a molecule contains 2 atoms of P and 5 atoms of O
d) the ratio of the mass of P to the mass of O in the molecule is 5 : 2
Answer »Answer: (c)
Question : 4
Which one of the following statement is not true ?
a) The total number of neutrons and protons is always equal in a neutral atom
b) The total number of electrons and protons in an atom is always equal
c) Most of the space in an atom is empty
d) The total number of electrons in any energy level can be calculated by the formula 2n2
Answer »Answer: (a)
e.g., In 17Cl35 no. of p = 17 but no. of n = 35 – 17 = 18
Question : 5
The atoms, in which the number of protons is same but the number of neutrons is different, are known as
a) Isomers
b) Isotones
c) Isobars
d) Isotopes
Answer »Answer: (d)
Question : 6
In atom, neutron was discovered by
a) Chadwick
b) Rutherford
c) J.J. Thomson
d) Newton
Answer »Answer: (a)
Verbal Reasoning
Question & Answer Quiz
Non Verbal Reasoning
Question & Answer Quiz
Quantitative Aptitude
Question & Answer Quiz
Computer MCQ
Question & Answer Quiz
General English
Question & Answer Quiz
History GK
Question & Answer Quiz
Polity GK
Question & Answer Quiz
Geography GK
Question & Answer Quiz
Economy GK
Question & Answer Quiz
General Awareness GK
Question & Answer Quiz
Recently Added Subject & Categories For All Competitive Exams
New 150+ Percentage Questions For IBPS Clerk Prelims 2024
Free Top Percentage Quants Aptitude based Multiple Choice Questions and Answers Practice Test Series, Quiz PDF & Mock Test for IBPS Clerk Prelims 2024 Exam
Continue Reading »
Classification Reasoning MCQ For IBPS Clerk Prelims 2024
Most Important 100+ Classification based Verbal Reasoning Ability Multiple choice questions and answers PDF, Free New Mock tests For IBPS Clerk Prelims 2024
Continue Reading »
Ratio and Proportion Questions with Solutions, IBPS Clerk
New Ratio and Proportion Quants Aptitude based Multiple Choice Questions and Answers Practice Test Series, Quiz & Mock Test for IBPS Clerk Prelims 2024 Exam
Continue Reading »
Top Analogy Reasoning Ability For IBPS Clerk Prelims 2024
Most Important Analogy based Verbal Reasoning Multiple choice questions and answers practice quiz series PDF, Free New Mock tests For IBPS Clerk Prelims 2024
Continue Reading »