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The complex for which the calculation of crystal field splitting can be most easily done, by knowing its absorption spectrum, will be :

(A) (B) (C) (D) The Correct Answer is (C) Solution: In , the Ti(III) ion has one electron in 3d subshell. Thus, it is one... View Article

Which of the following product is obtained when a mixture of methane(CH4)and oxygen(O2) is passed through heated molybdenum (Mo2O3) at 543k at 100 atm pressure?

(A) Ethanal (B) Methanol (C) Methanal (D) Methanoic acid The Correct Answer is (C) Methanal Solution: When a mixture of methane and oxygen... View Article

By adding a small amount of KMnO4 to concentrated H2SO4, a green oily compound is obtained, which is highly explosive in nature. Identify the compound from the following options.

(A) MnO2 (B) MnSO4 (C) Mn2O3 (D) Mn2O7 The Correct Answer is (D) Mn2O7 Solution: By adding a small amount of KMnO4 to concentrated H2SO4,... View Article

Arrange the following compounds in decreasing order of their boiling points.Bromomethane (CH3Br), Bromoethane(CH3CH2Br), Bromoalkane (CH3CH2CH2Br), Bromobutane (CH3CH2CH2CH2Br)

(A) Bromomethane > Bromoethane > Bromoalkane > Bromobutane (B) Bromobutane > Bromoalkane > Bromomethane > Bromoethane (C)... View Article

Which of the following chemical compound contains a maximum number of Hydrogen atoms:

(A) H2O (B) CH4 (C) H2O2 (D) CuSO4.5H2O The Correct Answer is (B) CH4 Solution: Methane(CH4) is a colourless odourless gas, which... View Article

A man purchases two clocks A and B at a total cost of Rs 650. He sells A at 20% profit and B at a loss of 25% and gets the same selling price for both the clocks. What are the purchasing prices of A and B respectively?

Let the cost price of clock A be X and that of clock B be 650 -x. From the given information, we can write 120% of x = 75% of (650-x)... View Article

Integral xsinxsec^3x dx is equal to

∫x sinx sec3 x dx=∫x sinx (1/cos3x)dx =∫x tanx sec2x dx =x ∫secx (secx tanx)dx−∫[∫secx(secx tanx)dx]dx+C... View Article

What are x-intercept and y-intercept?

X- intercept: The x-intercept represents where the graph crosses the x-axis. The x-intercept of a line gives the idea about the point which... View Article

A train 100 meters long takes 6 seconds to cross a man walking at 5km/h in a direction opposite to that of the train. The speed of the train is

Given that, the length of a train = 100m = 100/1000 km = 1/10 km. Time = 6 sec = 6/3600 hr = 1/600 hr Let the speed of the train be x km/hr.... View Article

Two boys A and B find the jumble of n ropes lying on the floor. Each takes hold of one loose end randomly. If the probability that they are both holding the same rope is 1/101, then the number of ropes is equal to

As we know that a rope has two ends. Hence, for n ropes, the total number of ends = 2n. So, remaining ends = 2n-1. Hence, selecting one end... View Article

The sum and difference of two perpendicular vector of equal length are

Perpendicular to each other and of equal length Perpendicular to each other and of different lengths Of equal length and have an obtuse... View Article

What happens to the focal length of a convex lens when it is immersed in water?

Answer: Increases Solution: μ = n/n' here n is the refractive index of lens n' is the refractive index of air = 1 The... View Article

If the tension in the cable supporting an elevator is equal to the weight of the elevator, the elevator maybe

a) going up with the increasing speed b) going done with increasing speed c) going up with the uniform speed d) going down with uniform... View Article

When the angle of contact between a solid and a liquid is 90^o, then

a) Cohesive force > Adhesive force b) Cohesive force < Adhesive force c) Cohesive force = Adhesive force d) Cohesive... View Article

A solid sphere is in a rolling motion. In rolling motion, a body possesses translational kinetic energy (K_t) as well as rotational kinetic energy (K_r) simultaneously. The ratio K_t:(K_t+K_r) for the sphere is?

a) 10:7 b) 7:10 c) 2:5 d) 5:7 Answer: d) 5:7 Solution: Linear kinetic energy, Kt = mv2/2 Rotational kinetic energy, Kr =... View Article

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