set 2 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 2 EXERCISES
The following question based on general concepts of chemistry topic of general science mcq
(a) Fe + Cl2 ⟶ FeCl3
(b) NaOH + HCl ⟶ NaCl + H2O
(c) Mg + CuSO4 ⟶ MgSO4 + Cu
(d) Mg + 2HNO3 ⟶ Mg(NO3 )2 + H2
The correct answers to the above question in:
Answer: (a)
2Fe + 3Cl2 ⟶ 2FeCl3 (balanced chemical eqn.)
Discuss Form
Read more general concepts of chemistry Based General Science Questions and Answers
Question : 1
Which of the following does not corrode when exposed to the atmosphere?
a) Gold
b) Iron
c) Copper
d) Silver
Answer »Answer: (a)
Gold is a noble metal.
Question : 2
When electrons are added the resulting ion is called
a) neutral radical
b) basic radical
c) acidic radicals
d) None of these
Answer »Answer: (c)
Cl + e– Cl– (acidic radicals)
Question : 3
The empirical formula and molecular mass of a compound are CH2O and 180 g respectively. What will be the molecular formula of the compound ?
a) C6H12O6
b) C9H18O9
c) CH2O
d) C2H4O2
Answer »Answer: (a)
$n =180/\text"Molecular mass of CH_2O" = 180/30$n=6
Question : 4
AgNO3(aq) + NaCl(aq) ⟶ AgCl(s) + NaNO3(aq) Above reaction is -
a) combination reaction
b) precipitation reaction
c) double displacement reaction
d) Both (b) and (c)
Answer »Answer: (d)
This reaction is double displacement and precipitation as well because insoluble silver chloride gets precipitated.
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
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 »
SSC STENO: Speed Time and Distance MCQ Questions Test PDF
Free Time and Distance Aptitude-based Practice multiple questions with solutions, Quiz series, Mock Test & Download PDF for SSC Steno (Grade C & D) 2024 Exam
Continue Reading »