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Q:

which of the following are chemical changes?

A) Cooking of Food

B) Digestion of Food

C) Freezing of water

D) Water is heated up

A) A & B B) A, B & C
C) C & D D) All the above
 
Answer & Explanation Answer: A) A & B

Explanation:

A) Cooking of Food  ------ Chemical Change

B) Digestion of Food ----- Chemical Change

C) Freezing of water ----- Physical Change

D) Water is heated up ---- Physical Change

because here the chemical composition of the substance changes in A & B only.

 

Since we know that, If the chemical composition is changing then it is a chemical change and if the chemical composition is remaining the same, then it is a physical change.

 

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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12 108196
Q:

How many squares do you see?

 

squares11523426304.jpg image

A) 44 B) 45
C) 46 D) 50
 
Answer & Explanation Answer: B) 45

Explanation:

Number of squares in the given figure is

16 + 9 + 19 + 1 = 45.

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Filed Under: Math Puzzles
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718 107777
Q:

Ctrl, Shift and Alt are called .......... keys.

A) modifier B) function
C) alphanumeric D) adjustment
 
Answer & Explanation Answer: A) modifier

Explanation:

Modifier keys include Alt, Ctrl, Shift and the Windows key.

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Filed Under: Computer
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1200 107429
Q:

Correct the sentence gramatically :

She went to gym despite of her illness.

A) to B) despite
C) of D) None of the above
 
Answer & Explanation Answer: C) of

Explanation:

In the given sentence,

Despite is the preposition. It does not take 'of' after it. Therefore, the grammar mistake in the given sentence is 'of'.

 

Hence, the correct sentence is  "She went to gym despite her illness."

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Filed Under: English
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52 107240
Q:

In the following question, select the related number from the given alternatives.

50 : 65 : : 122 : ?

 

 

 

A) 157 B) 145
C) 147 D) 155
 
Answer & Explanation Answer: B) 145

Explanation:
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Filed Under: Analogy
Exam Prep: Bank Exams

2 105318
Q:

Select the antonym of

 

cameo

 

A) trinket B) gem
C) bauble D) plain
 
Answer & Explanation Answer: D) plain

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

30 105071
Q:

What is the value of 6x2 - 5y26x2 + 5y2, if x = 13 and y = 15?

 

A) 2 B) 3
C) 4 D) 5
 
Answer & Explanation Answer: B) 3

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

1 104852
Q:

which part of the given sentence has an error?

She don't speak of either German or French.

A) don't B) of
C) or D) speak
 
Answer & Explanation Answer: B) of

Explanation:

She don't speak either German or French is the correct sentence in English.

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Filed Under: English
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43 104718