General Science - Chemistry

1.

Which among the following gas is used in Balloons?

[A] Hydrogen
[B] Helium
[C] Nitrogen
[D] Oxygen

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2.

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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3.

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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4.

What is the atomic number of Transuranic elements?

[A] Greater than 90
[B] Greater than 92
[C] Greater than 91
[D] Greater than 93

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5.

A Cyclotron is ___?

[A] A charged particle
[B] A particle Accelerator
[C] A magnetic particle
[D] A radioactive particle

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6.

Steel is an alloy consisting mostly of iron, with a carbon content between 0.2% and 2.1% by weight. An increasing amount of Iron will result in which of the following?

[A] Increase Hardening
[B] Decrease Hardening
[C] Increase ductility
[D] Increase melting Point

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7.

Cassiterite is an ore of which of the following ?

[A] Iron
[B] Zinc
[C] Copper
[D] Tin

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8.

Which of the following are found in nucleus of Deuterium 

[A] 1 proton & 1 neutron
[B] 2 protons
[C] 1 proton and 1 electron
[D] 2 neutrons only

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9.

Which among the following provides the centripetal force to an electron circulating around the nucleus?

[A] electrostatic forces of repulsion
[B] electrostatic force of attraction
[C] speed of the electron
[D] nuclear charge

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10.

Which among the following of a catalyst does not change at the end of a reaction?

[A] Quantity
[B] Chemical Composition
[C] Both Quantity and Chemical com position
[D] None of the above

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