Bank Exams Questions

Q:

What is the conjugate base of H2O?

A) NH3+ B) OH-
C) H2O D) All the above
 
Answer & Explanation Answer: B) OH-

Explanation:

A conjugate acid, is a species formed by the reception of a proton (H+) by a base—in other words, it is a base with a hydrogen ion added to it.

On the other hand, a conjugate base is what is left over after an acid has donated a proton during a chemical reaction. Hence, a conjugate base is a species formed by the removal of a proton from an acid.

Because some acids are capable of releasing multiple protons, the conjugate base of an acid may itself be acidic.

Represented as the following chemical reaction:

Acid + Base ⇌ Conjugate Base + Conjugate Acid

 

The water molecule is the conjugate acid of the hydroxide ion after the latter received the hydrogen proton donated by ammonium. On the other hand, ammonia is the conjugate base for the acid ammonium after ammonium has donated a hydrogen ion towards the production of the water molecule. We can also refer to OH- as a conjugate base of H2O, since the water molecule donates a proton towards the production of NH+4 in the reverse reaction, which is the predominating process in nature due to the strength of the base NH3 over the hydroxide ion.

 

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Q:

Portrait and Landscape are

A) Page notations B) Page orientations
C) Page layout D) Page size
 
Answer & Explanation Answer: B) Page orientations

Explanation:

Portrait and Landscape are modes of page orientations. In landscape mode page is wider than tall and in portrait mode it is inverse of landscape mode.

 

portrait_and_landscape_are1559817359.png image

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Q:

 

The given table represents the marks obtained by four students W, X, Y and Z in four subjects P, C, B and M, with the maximum marks in each subject being 100.

 

The student who got the highest percentage of marks in P, C, M and B combined is

 

A) W B) X
C) Y D) Z
 
Answer & Explanation Answer: A) W

Explanation:
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Q:

_ tu _ rt _ s _ _ usrtu _

A) rsutrr B) rsurtr
C) rsurts D) rtusru
 
Answer & Explanation Answer: C) rsurts

Explanation:

The series rtus/rtus/rtus/rtus. Thus, the pattern 'rtus' is repeated.

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Q:

The inner circumference of a circular race track, 14m wide is 440m. Find the radius of the outer circle.

A) 84m B) 24m
C) 44m D) 54m
 
Answer & Explanation Answer: A) 84m

Explanation:

let inner radius be r meters. 

2πr=440r=440×744=70mradius of outer circle =70+14m  

 

Therefore, Radius of outer circle = 70 + 14 = 84m

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Q:

The given graph shows Distribution of various minerals in the human body.

Calcium
Magnesium
Iron
Potassium
Sodium


Based on the given data, if a person has a total of 1000 IU of all the mentioned minerals in his body, what is the units of calcium distributed in his body?

 

A) 300 IU B) 200 IU
C) 400 IU D) 500 IU
 
Answer & Explanation Answer: C) 400 IU

Explanation:
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Q:

At a certain rate of interest the compound interest of 3 years and simple interest of 5 years for certain sum of money is respectively Rs. 1513.2 and Rs. 2400. Find the common rate of interest per annum ?

A) 5% B) 6%
C) 4% D) 3%
 
Answer & Explanation Answer: A) 5%

Explanation:

Given compound interest for 3 years = Rs. 1513.2

 

and simple interest for 5 years = Rs. 2400

 

Now, we know that  C.I = P1+R100n - 1

 

=> 1513.2 = P1+R1003 - 1 ...........(A)

 

And S.I = PTR/100

 

=> 2400 = P5R/100 ..................(B)

 

By solving (A) & (B), we get

 

R = 5%.

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Q:

What was the day on 2nd Jan 1901 ?

A) Tuesday B) Wednesday
C) Monday D) Thursday
 
Answer & Explanation Answer: B) Wednesday

Explanation:

2nd Jan 1901 means
(1900 years and 2 day)
Now, 1600 years have 0 odd day
300 years have 1 odd day
2 days has 2 odd day
Total no. of odd days = 0 + 1 + 2 = 3 days
Hence, the day on 2nd Jan 1901 was Wednesday.

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