1. Magnesium will react with water only if the water is
ANSWER: boiling
2. How many protons, electrons and neutrons are present in a 14C6 carbon isotope?
ANSWER: 6 protons, 6 electrons, 8 neutrons
3. How many postulates did Niels Bohr make to support the Bohr’s atomic theory?
ANSWER: 4
4. “Electron orbits are discrete and non-radiating, and on electron may not remain between these orbits.” This is also known as
ANSWER: First Postulate of Niels Bohr
5. Who has been accepted as the author of the periodic table which was developed by chemists in the mid-nineteenth century?
ANSWER: Mendeleev
6. The mass of a proton is approximately how many times greater than the mass of an electron?
ANSWER: 1836
7. The mass of a neutron is approximately how many times greater than the mass of an electron?
ANSWER: 1839
8. What refers to a crystal imperfection characterized by regions of severe atomic misfit where atoms are not properly surrounded by neighboring atoms?
ANSWER: Dislocation
9. What do you call an atom that has lost or gain an electron?
ANSWER: Ion
10. What is the ion that is smaller than its parent atom?
ANSWER: Cation
11. What is the ion that is greater than its parent atom?
ANSWER: Anion
12. How many fundamental substances are present in nature?
ANSWER: 92
13. The ___________ of an environment serves as a measure of the strength of acids or bases.
ANSWER: pH measurement
14. The solutions with pH values from 1 to 6 are
ANSWER: acid
15. The solutions with pH values from 7 to 12 are
ANSWER: base
16. What is the pH value for a neutral solution?
ANSWER: 7
17. pH stands for
ANSWER: positive hydrogen ion
18. What do you call a fluid that conducts electricity?
ANSWER: electrolyte
19. Oxidation in an electrochemical cell always place at the anode.
20. Reduction in an electrochemical cell always place at the cathode.
21. The other name for specific gravity is called as
ANSWER: relative density
22. The engineering materials known as “plastics” is correctly called as
ANSWER: polymers
23. Polymer comes from Greek words “poly” which means “many” and “meros” which means ___________.
ANSWER: parts
24. What do you call an alloy which is practically having a constant resistance at all temperatures?
ANSWER: Eureka
25. What do you call metals reinforced by ceramics or other materials, usually in fiber form?
ANSWER: Metal Matrix composites
26. What is a combination of one or more metals with a nonmetallic element?
ANSWER: Ceramic
27. It is a metal combined with one or more elements
ANSWER: Alloy
28. ____________ states that there are five needs of an employee: psychological, security, social, esteem and self actualization.
ANSWER: Maslow’s Needs Hierarchy Theory
29. What are the common training programs designed for managers?
ANSWER: In Basket, Management games, Case studies
30. What type of training is where the trainee is placed in a situation almost exactly the same as the workplace where machines, materials, time constraints are present with the trainer working full time?
ANSWER: Vestibule School
My sister's board exams are just around the corner and she has literally no preparation at all. Hope she'll prepare from here. Can't say no to internet actually, lol.
ReplyDelete