Q:

The pH of a solutiion is 3. When its pH changes to 6, then H+ ion concentration

A) increases 2 times	B) increases 3 times
C) decreases 1000 times	D) decreases 100 times

Answer & Explanation Answer: C) decreases 1000 times

Explanation:

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Filed Under: Chemistry
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Q:

There is certain relationship between two given words on one side of : : and one word is given on another side of : : while another word is to be found from the given alternatives, having the same relation with this word as the given pair has. Select the best alternatives/ relationship.

Firm : Flabby :: Piquant : ?

A) Salty	B) Pleasant
C) Bland	D) Smell

Answer & Explanation Answer: C) Bland

Explanation:

Both words Firm : Flabby are opposite in meaning.

Similarly, Piquant means pleasantly sharp taste, spicy. Bland means tasteless. Both are also opposite in meaning.

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Filed Under: English
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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

One who is honourably discharged from service

A) Belligerent	B) Emeritus
C) Truant	D) Mercenary

Answer & Explanation Answer: B) Emeritus

Explanation:

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Q:

Which of the following is an excretory organ of cockroach?

A) Malphigian Tubules	B) Nephridia
C) Coxal Gland	D) Green Gland

Answer & Explanation Answer: A) Malphigian Tubules

Explanation:

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Filed Under: Biology
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Q:

Which cells give rise to various organs of the plant and keep the plant growing?

A) Permanent	B) Dermal
C) Meristematic	D) Mature

Answer & Explanation Answer: C) Meristematic

Explanation:

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Filed Under: Biology
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Q:

Organisms that use light to prepare food are known as _____.

A) Autotrophs	B) Heterotrophs
C) Omnivores	D) Decomposers

Answer & Explanation Answer: A) Autotrophs

Explanation:

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Filed Under: Biology
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Q:

Which of the following disease is not caused by water pollution?

A) Cholera	B) Typhoid
C) Asthma	D) Diarrhoea

Answer & Explanation Answer: C) Asthma

Explanation:

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Filed Under: Biology
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Q:

What is the common name of the solution of calcium hydroxide?

A) Lime water	B) Diet soda
C) Salt solution	D) Vinegar

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