General Science - Chemistry MCQs

81. Bring out the statement which is wrong:
[A] Acetone is used as a solvent
[B] Adrenaline is used in the event of heart failure
[C] graphite is an example of allotropy
[D] All are correct

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82. Which among the following basic atoms are must in an Alkaloid?
[A] Sodium
[B] Nitrogen
[C] Magnesium
[D] Potassium

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83. F block elements in the periodic table which are commonly called Lanthanides have the following atomic numbers:
[A] 57-70
[B] 57-71
[C] 58-71
[D] 58-70

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84. The volume of a gas at a given pressure and temperature is proportional to the number of atoms or molecules regardless of the nature of the gas. This concept is called as___?
[A] Avogadro’s law
[B] Dalton’s law
[C] Henry’s law
[D] Ideal gas law

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85. Who among the following is known to manufacture first Cyclotron?
[A] Ernest Lawrence
[B] Niels Bohr
[C] Rutherford
[D] Max Born

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86. British Scientist JJ Thomson was awarded Nobel prize in Physics in 1906 for discovery of which of the following particle?
[A] Electron
[B] Proton
[C] Neutron
[D] Radio activity

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87. Charles Goodyear is known for which of the following ?
[A] Experiments on Rubber Plants
[B] Vulcanization of Rubber
[C] Invention of Radial Tyres
[D] Invention of Artificial Rubber

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88. Which among the following gas is used in Balloons?
[A] Hydrogen
[B] Helium
[C] Nitrogen
[D] Oxygen

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89. Which among the following is the most important characteristic of Noble metals?
[A] Luster
[B] Non reactive nature
[C] Preciousness
[D] Rare availability

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90. Which among the following is correct regarding the alkaline battery ?
[A] Negative terminal made of Zinc Powder and Positive terminal made of Manganese dioxide & electrolyte is KOH
[B] Negative terminal made of Manganese dioxide and Positive terminal made of Zinc powder & electrolyte KOH
[C] Negative terminal made of Zinc Powder and Positive terminal made of Manganese dioxide & Electrolyte is Ammonium Chloride
[D] Negative terminal made of Manganese dioxide and Positive terminal made of Zinc powder & electrolyte Ammonium Chloride

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