Sail E0 Webinar

General Knowledge > General Science

BOND ENERGY MCQs

Total Questions : 20 | Page 2 of 2 pages
Question 11. How do atoms fill their valence level with electrons?
  1.    share with other atoms
  2.    steal from other atoms
  3.    give up electrons to other atoms
  4.    None of these
 Discuss Question
Answer: Option A. -> share with other atoms
Question 12. All types of chemical bonds hold the same amount of chemical energy
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 13. What kind of energy is released or absorbed when chemical bonds are formed and broken?
  1.    kinetic energy
  2.    thermal (heat) energy
  3.    chemical energy
  4.    light energy
 Discuss Question
Answer: Option B. -> thermal (heat) energy
Question 14. What is an electron?
  1.    + charged particle in an atom's nucleus
  2.    - charged particle in an atom's nucleus
  3.    - charged particle outside an atom's nucleus
  4.    + charged particle outside an atom's nucleus
 Discuss Question
Answer: Option C. -> - charged particle outside an atom's nucleus
Question 15. Which units are used to measure energy?
  1.    Newtons
  2.    kilograms
  3.    meters/second
  4.    Joules
 Discuss Question
Answer: Option D. -> Joules
Question 16. What kind of energy is stored in the chemical bonds between atoms?
  1.    kinetic energy
  2.    thermal energy
  3.    chemical energy
  4.    light energy
 Discuss Question
Answer: Option C. -> chemical energy
Question 17. If you hold a container where a chemical reaction is taking place and it feels warm to you, this reaction is:
  1.    endothermic
  2.    exothermic
  3.    isothermic
  4.    what?
 Discuss Question
Answer: Option B. -> exothermic
Question 18. The following equation shows the formation of magnesium oxide from magnesium metal
  1.    1204 kJ of energy are released for every mole of magnesium reacted
  2.    602 kJ of energy are absorbed for every mole of magnesium oxide formed
  3.    602 kJ of energy are released for every mole of oxygen reacted
  4.    1204 kJ of energy are released for every two moles of magnesium oxide formed
 Discuss Question
Answer: Option D. -> 1204 kJ of energy are released for every two moles of magnesium oxide formed
Question 19. Which statement is true regarding endothermic reactions?
  1.    Temperature change is positive and enthalpy change is positive
  2.    Temperature change is positive and enthalpy change is negative
  3.    Temperature change is negative and enthalpy change is positive
  4.    Temperature change is negative and enthalpy change is negative
 Discuss Question
Answer: Option C. -> Temperature change is negative and enthalpy change is positive
Question 20. When the solids Ba(OH)2 and NH4SCN are mixed, a solution is produced and the temperature drops
  1.    The reaction is endothermic and ΔH is negative
  2.    The reaction is endothermic and ΔH is positive
  3.    The reaction is exothermic and ΔH is negative
  4.    The reaction is exothermic and ΔH is positive
 Discuss Question
Answer: Option B. -> The reaction is endothermic and ΔH is positive

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY 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
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

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI
Tabulation - Test Paper 2 Data Interpretation Reasoning & DI
Test Paper 1 Direction Sense Test Reasoning & DI
ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0
GFM Combined 1 Free Revision Test SAIL JO E-0