Menu
Popular Courses
Sail E0 PackageValid Till Next Exam
Fast Math Tricks165 videos
Quantitative Aptitude645 Videos
Reasoning Aptitude161 Videos
CLASS 8 MATHS(CBSE)417 Videos
CLASS 9 MATHS(CBSE)40 hours, 647 questions
Check All Courses
Search

MCQs

Total Questions : 1678 | Page 1 of 168 pages
Question 1. Example of atom having single isotope is
  1.    carbon
  2.    calcium
  3.    gold
  4.    cadmium
 Discuss Question
Answer: Option C. -> gold
Answer: (c).gold
Question 2. In ionization chamber vapors are bombarded with fast moving
  1.    protons
  2.    electrons
  3.    neutrons
  4.    antineutron
 Discuss Question
Answer: Option B. -> electrons
Answer: (b).electrons
Question 3. Isotopes differ in number of
  1.    electrons
  2.    protons
  3.    neutrons
  4.    anti neutrino
 Discuss Question
Answer: Option C. -> neutrons
Answer: (c).neutrons
Question 4. Products which are obtained in a chemical reaction is
  1.    production
  2.    No yield
  3.    theoretical yield
  4.    actual yield
 Discuss Question
Answer: Option D. -> actual yield
Answer: (d).actual yield
Question 5. Isotopes of calcium are
  1.    seven
  2.    six
  3.    nine
  4.    twelve
 Discuss Question
Answer: Option B. -> six
Answer: (b).six
Question 6. Molecular formula is determined by multiplying n with
  1.    Molar mass
  2.    atomic number
  3.    atomic mass
  4.    empirical formula
 Discuss Question
Answer: Option D. -> empirical formula
Answer: (d).empirical formula
Question 7. Number of atoms or molecule present in one molar mass of an entity is known as
  1.    Bohr number
  2.    Mass number
  3.    Avogadro's number
  4.    Atomic number
 Discuss Question
Answer: Option C. -> Avogadro's number
Answer: (c).Avogadro's number
Question 8. Phenomenon of isotopy was discovered by
  1.    Rutherford
  2.    Bohr
  3.    Soddy
  4.    Democritus
 Discuss Question
Answer: Option C. -> Soddy
Answer: (c).Soddy
Question 9. 1 atomic mass unit is equal to
  1.    1.661x10-27
  2.    1.665x10-23
  3.    1.661x10-34
  4.    1.661x10-21
 Discuss Question
Answer: Option A. -> 1.661x10-27
Answer: (a).1.661x10-27
Question 10. Units by which hydrogen atom is lighter than hemoglobin is
  1.    70000
  2.    58000
  3.    78000
  4.    68000
 Discuss Question
Answer: Option D. -> 68000
Answer: (d).68000

Share this page with your friends!

Share this page with your friends!

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDI Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE 2024
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

Chapter 1.1 : INTRODUCTION Chapter 1 : Raw Material Handling Plant GPOE/GPA 2024
Chapter 1.1 : Personnel Functions- An ov Chapter 1 : Personnel Management GFM 2024
Chapter 3.1 : INTRODUCTION Chapter 3 : Sinter Plant GPOE/GPA 2024
Chapter 2.3 : COAL HANDLING PLANT - Set Chapter 2 : Coke Ovens and Coal Chemicals GPOE/GPA 2024
Chapter 2.1 : Overview Chapter 2 : Materials Management GFM 2024
▲