List of practice Questions

Write a short note on amino acids and nucleic acids.
(b) At which point is the slope of the line \( y = x + 1 \) equal to the slope of the curve \( y^2 = 4x \)?

चरकुला लोक नृत्य किस राज्य से सम्बन्धित है-

Mention the characteristics of intensive subsistence agriculture.
₹ 10000 is invested for \( 1\frac{1}{2} \) years at 10% p.a. What is the difference between the compound interest when the sum is compounded half yearly and when it is compounded annually?
A block of mass 5 kg is placed on a rough horizontal surface with a coefficient of friction 0.5. If a horizontal force of 60 N is acting on it, then the acceleration of the block is (Acceleration due to gravity \( g = 10 \) ms\(^{-2}\)):
The equivalent impedance, ZAB, in the circuit given below is ________ Ω. Give your answer rounded off to one decimal place.
Electric Circuit
For an endothermic reaction:
(A) \( q_p \) is negative.
(B) \( \Delta_rH \) is positive.
(C) \( \Delta_rH \) is negative.
(D) \( q_p \) is positive.
Choose the correct answer from the options given below:
What is the number that comes next in the sequence?
1, 8, 27, 64, ___, 216, 343
Fill in the blanks:
1, 4, 9, 16, ___, 25, 49
Find the next in series: 7G, 11K, 13M, _____ .
Choose the correct preposition: She was born ------- December ------ midnight.
The mean of consecutive positive integers from 2 to \( n \) is:
The thief was caught .................. the police.
Choose the word that, when inserted in the sentence, best completes the sentence. Despite their reputation for being harsh, the ancient rulers were known to give
------ to the condemned quite frequently.

A 0 to 30 V voltmeter has an error of \(\pm 2\%\) of FSD. What is the range of readings if the voltage is 30V?

After the implementation of economic reforms, Pakistan experienced slowdown of growth due to various reasons including _______ . 
(Choose the correct alternative to fill in the blank): 
(i) Volatile performance of the agriculture sector 
(ii) Over-dependence on remittances from abroad 
(iii) Political instability

Find out the angle of refraction in a medium of refractive index \(\sqrt{3}\), when the angle of incidence is \(60^\circ\). 
 

Evaluate: \[ I = \int_0^{\pi} \frac{x \, dx}{a^2 \cos^2 x + b^2 \sin^2 x} \]
The smallest positive number which is divisible by the numbers 2, 3, 4, 5, 6, 7 is

You are Mr. Srikanth Sharma. You have recently built a new house in the hills of Uttarakhand. Draft a letter inviting your brother and his family to spend a few days with you in your new home. Include relevant details. 
 

There are 10 black and 5 white balls in a bag. Two balls are taken out, one after another, and the first ball is not placed back before the second is taken out. Assume that the drawing of each ball from the bag is equally likely. What is the probability that both the balls drawn are black? 

Solve the differential equation \[ \frac{dy}{dx} = e^x \sin x. \]
Explain the effect of temperature and concentration on the velocity of a reaction.

The spin-only magnetic moment of \( \text{Cr}^{3+} \) cation is ___________.