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Q:

What are the main components of Brass Alloy?

A) Copper and Zinc B) Copper and Strontium
C) Copper, Zinc and Nickel D) Copper and Nickel
 
Answer & Explanation Answer: A) Copper and Zinc

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Q:

Which one of the following is an ohmic conductor?

A) Germanium B) Silicon
C) Carbon D) Silver
 
Answer & Explanation Answer: D) Silver

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Q:

Alpha particles are ___________.

A) twice the mass of beta particles B) negatively charged
C) just like helium nuclei D) lower in ionizing power as compared to gamma rays
 
Answer & Explanation Answer: C) just like helium nuclei

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Q:

The chemical formula of Ammonia is _____ .

A) NH B) NH1
C) NH2 D) NH3
 
Answer & Explanation Answer: D) NH3

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Q:

Alkenes were earlier known as ______.

A) Paraffins B) Titoffins
C) Olefins D) Meloffins
 
Answer & Explanation Answer: C) Olefins

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Q:

Which among the following compounds has the strongest hydrogen bond?

A) HI B) HCl
C) HF D) HBr
 
Answer & Explanation Answer: C) HF

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Q:

Bee sting contains________________

A) An acidic liquid B) a salt solution
C) an alkaline liquid D) a corrosive liquid
 
Answer & Explanation Answer: A) An acidic liquid

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Q:

Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

A) B2H6 B) Ne
C) C6H14 D) O3
 
Answer & Explanation Answer: D) O3

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