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Q:

If price of an article decreases from Rs 800 to Rs 700, quantity demanded increases from Q1 units to 70 units. If point elasticity of demand is -1.333 find Q1?

A) 80 units B) 90 units
C) 60 units D) 50 units
 
Answer & Explanation Answer: C) 60 units

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Q:

The pH value increase from 7 to 14 represents a

A) decrease in H+ ion concentration B) decrease in OH- ion concentration
C) increase in OH- ion concentration D) increase in H+ ion concentration
 
Answer & Explanation Answer: C) increase in OH- ion concentration

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Filed Under: Chemistry
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Q:

Which of the following metals reacts vigorously with cold water?

A) Potassium B) Aluminium
C) Zinc D) Iron
 
Answer & Explanation Answer: A) Potassium

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Q:

Which one of the following derives nutrition from plants as a parasite?

A) Malaria Parasite B) Lice
C) Bryophyllum D) Cuscuta
 
Answer & Explanation Answer: D) Cuscuta

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Q:

Fertilisation of sperm with the ovum takes place in

A) Uterus B) Cervix
C) Fallopian Tube D) Ovary
 
Answer & Explanation Answer: C) Fallopian Tube

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Q:

The human spinal column is made up of ___ bones.

A) 33 B) 42
C) 44 D) 53
 
Answer & Explanation Answer: A) 33

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Filed Under: Biology
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Q:

Read each sentence to find out whether there is any error in any underlined part and indicate your response in the Answer Sheet against the corresponding letter i.e., (a) or (b) or (c). If you find no error, your response should be indicated as (d).

A) If a thing B) is worth doing at all
C) it is worth done well. D) No error
 
Answer & Explanation Answer: C) it is worth done well.

Explanation:

Error is in third part. Since “doing” was used in second part it should be followed by “doing” in third part as well instead of using “done”. Such repetitive figure of speech is used in
English grammar to create emphasis. This sentence indicates that a thing that is worth doing is also worthy of doing well. Here worth is the noun that must be followed by the verb doing.

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Filed Under: English
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Q:

If Metal A displaces Metal B from its solution, then Metal A ____.

A) is more reactive than B B) is less reactive than B
C) is heavier than B D) has the same reactivity as B
 
Answer & Explanation Answer: A) is more reactive than B

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