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Q:

The PCl5 molecule has trigonal bipyramidal structure. Therefore,the hybridization of p orbitals should be

A) sp2 B) sp3
C) dsp2 D) dsp3
 
Answer & Explanation Answer: D) dsp3

Explanation:

The P atom needs five orbitals to form the five P-Cl bonds. It has a 3s and three 3p orbitals, so it must use one of its 3d orbitals to form the fifth bond. These orbitals are hybridized to form five sp3d orbitals that just happen to point in the right directions to form a trigonal bipyramid.

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Filed Under: Chemistry
Exam Prep: Bank Exams

Q:

For a certain reaction,DGq = -45 kJ/mol and DHq= -90 kJ/mol at 0°C. What is the minimum temperature at which the reaction will become spontaneous, ifDHq and DSq are independent of temperature?

A) 273 K B) 298 K
C) 546 K D) 596 K
 
Answer & Explanation Answer: C) 546 K

Explanation:

T = 273 °K

Using the formula,

DGq = DHq –TDS

-45 = -90 –273 DS

DS = 0.164

Now since DHq and DSq are independent,T2= DH/DS = 45/0.164 = 273°K

Required Temp = 273 + 273 = 546°K

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Filed Under: Physics
Exam Prep: Bank Exams

Q:

Profit after tax for any year = profit of that year - tax of that year

Tax on any year = tax rate of that year x profit of the year

 

What is the total sum (in '000 crores) of profit after tax for Y1 to Y8?

A) 1763.6 B) 1803.2
C) 1820.2 D) 1872.4
 
Answer & Explanation Answer: C) 1820.2

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

Q:

Profit after tax for any year = profit of that year - tax of that year

Tax on any year = tax rate of that year x profit of the year

 

How many distinct values of yearly profit are there?

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

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

Q:

If sin θ + sin 5θ = sin 3θ and 0 < θ < (π/2), then what is the value of θ (in degrees)?

A) 30 B) 45
C) 60 D) 75
 
Answer & Explanation Answer: A) 30

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If sec2θ + tan2θ = 5/3, then what is the value of tan2θ?

A) 2√3 B) √3
C) 1/√3 D) Cannot be determined
 
Answer & Explanation Answer: B) √3

Explanation:
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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

Q:

A square is inscribed in a quarter circle in such a way that two of its adjacent vertices on the radius are equidistant from the centre and other two vertices lie on the circumference. If the side of square is √(5/2) cm, then what is the radius (in cm) of the circle?

A) 2 B) 2.5
C) 5 D) 10
 
Answer & Explanation Answer: B) 2.5

Explanation:
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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

Q:

In the given figure, PQRS is a square and SRT is an equilateral triangle. What is the value (in degrees) of angle SOR?

A) 45 B) 55
C) 60 D) 75
 
Answer & Explanation Answer: D) 75

Explanation:
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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams