Questions

Q:

Which of the following elements has the lowest melting point?

A) Iodine B) Lead
C) Tin D) Mercury
 
Answer & Explanation Answer: D) Mercury

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Filed Under: Chemistry
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Q:

Which among the following is not a characteristic of transition metals?

A) Tendency to gain electrons B) Low electronegativity
C) Low ionization energy D) Malleability
 
Answer & Explanation Answer: A) Tendency to gain electrons

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Q:

Work done by a passenger standing on a platform holding a suitcase weighing 10kg is

A) 980 J B) 98 J
C) 0 J D) 100 J
 
Answer & Explanation Answer: C) 0 J

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Filed Under: Physics
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Q:

The outermost layer of the earth's atmosphere is _______.

A) stratosphere B) troposphere
C) mesosphere D) exosphere
 
Answer & Explanation Answer: D) exosphere

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Q:

If a healthy freshwater fish is placed in salt water, what will be the expected consequence ?

A) The fish becomes dehydrated and dies B) The fish becomes bloated and dies
C) The fish suffers from fungal or bacterial disease and dies D) There is no observable effect on the fish provided there is sufficient food
 
Answer & Explanation Answer: A) The fish becomes dehydrated and dies

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Q:

A level of atmosphere which is composed partly of electrons and positive ions is called

A) Troposphere B) Ionosphere
C) Stratosphere D) Mesosphere
 
Answer & Explanation Answer: B) Ionosphere

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Q:

Who pioneered diagnostic ultrasound?

A) Alexander Fleming B) Ian Donald
C) A. Laveran D) Robert Koch
 
Answer & Explanation Answer: B) Ian Donald

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Filed Under: Inventions
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Q:

Who Invented PlayStation?

A) Wright brothers B) Reynold B. Johnson
C) Assen Jordanoff D) Ken Kutaragi
 
Answer & Explanation Answer: D) Ken Kutaragi

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