Questions

Q:

SnCl2 + 2HgCl2 ---> Hg2Cl2 + SnCl4

 

In the given reaction

 

A) HgCl2 is oxidised B) SnCl2 is oxidised
C) Hg2Cl2 is oxidised D) SnCl2 is reduced
 
Answer & Explanation Answer: B) SnCl2 is oxidised

Explanation:
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Filed Under: Chemistry
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Q:

The term _____ designates equipment that might be added to a computer system to enhance its functionality

A) digital device B) system add-on
C) disk pack D) peripheral device
 
Answer & Explanation Answer: D) peripheral device

Explanation:
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Filed Under: Computer
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Q:

The ratio of cost price and marked price of an article is 2:3 and ratio of percentage profit and percentage discount  is 3:2 . what is the discount percentage?

A) 16.66% B) 20%
C) 25% D) 33.33%
 
Answer & Explanation Answer: A) 16.66%

Explanation:

     CP : MP = 2x : 3x

 => Profit = x

 

( %) profit : (%) discount = 3:2

 

Let  CP = 2000,  SP = 300

 

But  3x100×200 + 2x100×300 = 100

 

=>  x = 8.33%

 

Discount 2x = 16.66% 

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Q:

What will be output when you will execute following c code?

#include <stdio.h>
void main()

{
    signed int a = -1;
    unsigned int b = -1u;
    if(a == b)
         printf( "The Lord of the Rings" );
    else
         printf( "American Beauty" );
}

A) The Lord of the Rings B) American Beauty
C) Compilation error: Cannot compare signed number with unsigned number D) Warning: Illegal operation
 
Answer & Explanation Answer: A) The Lord of the Rings

Explanation:
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Filed Under: Programming

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Q:

A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the couple is AB positive and O negative. The blood group of the three sons is A positive, B positive, and O positive. The blood group of the adopted son is

A) O positive B) A positive
C) B positive D) Cannot be determined on the basis of the given data
 
Answer & Explanation Answer: A) O positive

Explanation:
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Filed Under: General Science

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Q:

Which of the following is not a valid escape code?

A) " B) \
C) ' D) =
 
Answer & Explanation Answer: D) =

Explanation:

The valid escape codes in programming languages are ', ", \, n, or t are the valid escape codes. 

 

For example, the sequence \n usually represents a newline, while the escape sequence \\ represents a backslash, \t usually represents a newtab.

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Q:

A fort had provision of food for 150 men for 45 days. After 10 days, 25 men left the fort. The number of days for which the remaining food will last, is:

A) 29/5 B) 37/4
C) 42 D) 54
 
Answer & Explanation Answer: C) 42

Explanation:

After 10 days : 150 men had food for 35 days.

 

 

 

Suppose 125 men had food for x days.

 

 

 

Now, Less men, More days (Indirect Proportion)

 

 

 

 125 : 150 :: 35 : x    =>    125 x x = 150 x 35

 

 

 

 =>

 

 

 

=> x = 42.

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Q:

Read each sentence to find out whether there is any error in any part

The jug(a) is made(b) out of china clay(c).No error.(d)

A) a B) b
C) c D) d
 
Answer & Explanation Answer: C) c

Explanation:

‘Out of’ is the incorrect preposition used in the sentence. ‘Of’ needs to be used as the correct form of preposition is ‘made of something’. Thus, the correct sentence would be, ‘The jug is made of clay’.

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Filed Under: English
Exam Prep: Bank Exams

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