List of practice Questions

The Lyman series of a hydrogen atom belongs in which category
A pendulum oscillates simple harmonically and only if
(I) the sizer of the bob of pendulum is negligible in comparison with the length of the pendulum
(II) the angular amplitude is less than 10°.
The vertices of a parallelogram are (2, −3), (6, 5), (-2, 1), (-6, -7) in this order. The point of intersection of the diagonals is
Let A and B be subsets of the universal set U. If n(A) = 24 , n (A∩B)=8 and n(U) = 63, then n( A'∪B') is equal to
Two materials A and B having respective work functions 3 eV and 4 eV are emitting photoelectrons of same maximum kinetic energy of 1eV. If the wavelength of incident light on A is 500 nm, then that of light incident on B is
John's mother has 4 children, one child is named April, another child is named May, another child is named June. What is name of the fourth child ?
Shade the feasible region for the inequalities \[ x + y \geq 2, \quad 2x + 3y \leq 6, \quad x \geq 0, \quad y \geq 0 \] in a rough figure.
If A, B, and C are mutually exclusive and exhaustive events of a random experiment such that P(B) = (3/2) P(A) and P(C) = (1/2) P(B), then P(A ∪ C) equals:
Find the maximum value of f(x) = (1 / (4x2 + 2x + 1)).
If (√3 + i)100 = 299 (a + ib), then a2 + b2 is equal to:
Number of terms in the binomial expansion of (x + a)53 + (x - a)53 is:
The coefficient of x10 in the expansion of 1 + (1 + x) + (1 + x)2 + … + (1 + x)20 is:
If f(x) = { ax + 3, for x ≤ 2
a(x - 1), for x > 2 }, then the values of a for which f is continuous for all x are:
The equation of the normal to the curve y = (1 + x)y + sin-1(sin2x) at x = 0 is:
If A ⋅ adj(A) = [ -2 0 0 ]
[ 0 -2 0 ]
[ 0 0 -2 ], then |adj(A)| equals:
If matrix A = [ 2 -2 ] [ -2 2 ] and A² = pA, then the value of p is:
If for any 2 × 2 square matrix A, we have A ⋅ adj(A) = [8 0; 0 8], then the value of det(A) is:
The correct IUPAC name of the coordination compound K3[Fe(CN)5NO] is:

Reaction: 

Find the product B. 
 

The hydrocarbon that cannot be prepared effectively by the Wurtz reaction is:

The oxidation number of Cr in \(CrO_5\) which has the following structure, is: 

Arrange stability of the given carbon cation in decreasing order: 

Carnot cycle of an engine is given below. What is the total work done by the gas in one cycle?

Which of the following technique is NOT used for measuring small time intervals?
 

Centre of mass of the given system of particles will be at