Questions

Q:

What is the function of guard cells of stomata?

A) Opening of stomata only B) Closing of stomata only
C) Both opening and closing of stomata D) Neither opening nor closing of stomata
 
Answer & Explanation Answer: C) Both opening and closing of stomata

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Q:

How many states of India have sea-shore?

A) 7 B) 8
C) 9 D) 6
 
Answer & Explanation Answer: C) 9

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Q:

Kanha Tiger Reserve is in which state?

A) Maharashtra B) Andhra Pradesh
C) Chhattisgarh D) Madhya Pradesh
 
Answer & Explanation Answer: D) Madhya Pradesh

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Q:

Which one of the following statements is correct?

A) The oxidation number for hydrogen is always zero. B) The oxidation number for hydrogen is always + 1.
C) The oxidation number for hydrogen is always -1. D) Hydrogen can have more than one oxidation number.
 
Answer & Explanation Answer: D) Hydrogen can have more than one oxidation number.

Explanation:

Hydrogen has two possible oxidation numbers: +1 and -1.

-1 in case of hydrides.

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Q:

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.
He _____ his camera on the table.

A) laid B) lain
C) lay D) lie
 
Answer & Explanation Answer: A) laid

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Q:

Which of the following statement is true?

A) A Primary key is also a candidate key B) Each relation has at least one foreign key
C) Foreign keys can't have null values D) A Primary key is also an alternate key
 
Answer & Explanation Answer: A) A Primary key is also a candidate key

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Q:

Under Pradhan Mantri Vaya Vandana Yojana (PMVVY), there will be an assured periodic return over tenure of ______.

A) 5 years B) 10 years
C) 15 years D) 20 years
 
Answer & Explanation Answer: B) 10 years

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Q:

A body is initially moving with a velocity of 10 m/s. It undergoes an acceleration of 2 m/s2 for 5 seconds. Find the displacement (in m) of this body in these 5 seconds.

 

A)  25 B)  37.5
C)  50 D)  75
 
Answer & Explanation Answer: D)  75

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