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General Science - Chemistry MCQs Part2
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1. Which of the following does not increase when we move from left to right along a period in the periodic table?
Oxidising Power of elements
Electronegativity
Non-metallic Character
Reducing power
2. Which among the following would cause the bright red color due to bursting of crackers?
Strontium
Sodium
Sulphur
Magnesium
3. Which among the following is an example of a Chemical Change?
Rusting of iron
Magnetisation of iron
Melting of iron
Heating of iron
4. Which among the following acids is abundant in Grapes, Bananas and Tamarind?
Lactic Acid
Oxalic Acid
Salicylic Acid
Tartaric Acid
5. Which among the following methods can be used to remove the permanent hardness in water due to calcium or magnesium sulphates?
Sulphonate method
Nitrate method
Zeolite method
None of these
6. Which among the following is called Laughing Gas popularly?
Nitric oxide
Nitrous oxide
Nitrogen penta oxide
Nitrogen
7. Identify the thermosetting plastic from the given options:
Polythene
Bakelite
Polyvincychloride
Casseine
8. 2,4-D, which is sold as a weed killer of the broad-leaved weeds is a synthetic version of __:
Auxin Hormone
Cytokinin Hormone
Xylitol
None of them
9. The easily noticed smell of the LPG gas is because of which among the following?
Butane
Propane
Methane
Ethanethiol
10. Which among the following is major component of Gobar Gas?
Butane
Ethane
Propane
Metahne
11. The Modern periodic table has__:
seven periods and eighteen groups
nine periods and eighten groups
seven periods and twenty one groups
nine periods and twenty one groups
12. With reference to the Radioactivity, which among the following is called an isomeric transition?
Alpha emission
Gamma emission
Beta emission
X-Ray emission
13. Double Sulphitation is the most commonly used method in India for refining of _?
Crude oil
Cooking oils
Sugar
Coal
14. Which of the following is not a metalloid?
Boron
Silicon
Germanium
Titanium
15. Which of the following laws is used as a rule to predict the solubility of gases in metals?
Dalton’s Law
Sievert’s law
Graham’s law
Henry’s law
16. Consider the following compounds: 1. Water 2. Carbon dioxide 3. Carbon monoxide Which of the above is/are organic compound/compounds?
2 & 3 Only
1 Only
1, 2 & 3
None
17. What is the body called which does not have any tendency to recover its original configuration, on the removal of deforming force?
Perfectly plastic
Perfectly elastic
Perfectly ductile
None of the above
18. Which of the following is the unit of Strain?
Newton
Kg
Watt
None of the above
19. What is the ratio of change in configuration to the original configuration called as?
Strain
Stress
Elasticity
Rebound
20. What is the force that is required to produce unit elongation in a wire known as?
Bulk modulus
Thermal strain
Thermal stress
Force constant
21. What do we call the strain produced in a body when the deforming force produces a change in its shape without changing its volume?
Linear Strain
Volumetric Strain
Shearing strain
Thermal Strain
22. What is the maximum stress after which the wire breaks called as?
Tensile strength
Shear strength
Bulk strength
Hooke’s strength
23. Which among the following acids is generally used as a first hand test to judge whether a metal is Gold or not?
Sulfuric Acid
Nitric Acid
Hydrochloric Acid
Sulfurous Acid
24. How many electrons can the s-orbital accommodate?
1
2
8
16
25. Which of the following compound of sodium is generally prepared by Solvay process?
Sodium Carbonate
Sodium Hydroxide
Sodium Chloride
All of the above
26. What happens to the non-metallic character of elements in the p-block of the periodic table?
non-metallic character decreases down the group
non-metallic character increases down the group
No fix pattern
None
27. Which of the following catalyst is used generally during the hydrogenation of Alkenes?
Platinum
Palladium
Nickel
All of the above
28. What is the hemihydrate of calcium sulphate commonly known as?
Gypsum
Plaster of Paris
Chloroform
Limestone
29. Which of the following statements is correct about compounds of Nitrogen?
Nitrous oxide is also known as laughing gas
The chemical formula of Nitric oxide is NO
Nitrogen Dioxide is a gas that is brown in color
All of the above
30. Which of the following is correct about Ammonia?
The ammonia molecule is trigonal pyramidal in shape
Ammonia gas is light blue in colour
its aqueous solution is highly basic
Ammonia gas is odorless
31. Which of the following is correct about ozone?
it is a red coloured gas
it is odourless
it is harmless in small concentrations
All of the above
32. Which of these is NOT a compound of carbon?
Acetic acid
Chloroform
Caustic Soda
Methane
33. What do we call the compounds of carbon having double or triple bonds between the carbon atoms?
Saturated carbon compounds
Unsaturated carbon compounds
Fullerenes
None of the above
34. Which of the following is correct about the properties of a solution?
The particles of a solution can be seen by naked eyes
The particles of a solution scatter a beam of light passing through the solution
The solute particles do not settle down when left undisturbed
All of the above
35. Which of the following is correct about suspension?
It is a heterogeneous mixture
The particles of a suspension can be seen by naked eyes
The particles can be separated from the mixture by the process of filtration
All of the above
36. Choose the incorrect ‘Alloy – constituent metal’ pair:
Lockalloy – Iron
Vitallium – Cobalt
Italma – Aluminium
Constantan – Copper
37. What is the general Q-value for alpha-decay?
greater than 0
less than 0
equal to 0
None of the above
38. Which of the following sub-atomic particle accompanies an electron emission in Beta–decay?
antineutrino
neutrino
proton
None of the above
39. When is the gamma ray emitted?
When a nucleus in a ground state goes to the excited state
When a nucleus in an excited state spontaneously decays to its ground state
When alpha rays and beta rays collide
None of the above
40. Which of these processes is responsible for the energy released in an atom bomb?
Nuclear Fission
Nuclear Fusion
Gamma decay
None
41. Which of the following represents the reaction of Calcium oxide and water to form Slaked lime?
Displacement reaction
Combination reaction
Double Displacement reaction
None
42. What do we call the reactions in which there is an exchange of ions between the reactants?
Double Displacement reaction
Decomposition reaction
Displacement reaction
Combination reaction
43. Which of the following factors affect the rate of chemical reaction?
Concentration of reactants
Temperature
Catalyst
All of the above
44. What is the sum of powers of the concentration of the reactants called as?
Order of reaction
Stage of reaction
Zone of reaction
None of the above
45. What is the order of the reaction which is independent of the concentration of reactants?
Zero order
First order
Second order
Third order
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