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) 21
(b) 5
(c) 27
(d) 8
The correct answers to the above question in:
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.
Discuss Form
Read more chemistry basic Based General Science Questions and Answers
Question : 1
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 : 2
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 : 3
By whom was neutron discovered?
a) Chadwick
b) Rutherford
c) Bohr
d) Dalton
Answer »Answer: (a)
Question : 4
In which one of the following is the valence electronic configuration, ns2np3 found ?
a) Nitrogen
b) Oxygen
c) Carbon
d) Argon
Answer »Answer: (a)
Question : 5
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 : 6
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)
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
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 »
SSC STENO: Mensuration Area & Volume Questions Test PDF
Free Mensuration Area and Volume Aptitude-based Practice multiple questions with solutions, Quiz, Full Mock Test & PDF for SSC Steno (Grade C & D) 2024 Exam
Continue Reading »