List of top Questions asked in CBSE Class X

Write the shape of the magnetic field produced by a current carrying straight conductor. State the rule to find the direction of this field.
Explain the irony in the chapter, “A Letter to God”.
Fill in the following blank choosing the most appropriate option from the ones given below :
As per NEP 2020, skill exposure will begin at _________ .
Read the dialogue between Adam and Emma about a career option.
Adam : Why did you opt for a career in journalism?
Emma : I couldn’t resist my love for storytelling and my desire to expose the truth.
Select the option to complete the reporting of the above dialogue:
Adam asked Emma _______ in journalism. Emma passionately expressed that she couldn’t resist her love for storytelling and her desire to expose the truth.
Study the diagram given below and answer the questions that follow:
circnn
(i) Name the defect of vision represented in the diagram. Give reason for your answer.
(ii) List two causes of this defect.
(iii) With the help of a diagram show how this defect of vision is corrected.
“Until the nineteenth century, poverty and hunger were common in Europe.” Analyse the statement.
“Stability of DNA in a species is ensured during sexual reproduction.” Justify the statement.
“Activities in the private sector are guided by the motive to earn profits.” Examine the statement with examples.
“Federal form of government is in direct contrast to the Unitary form of government.” Explain the statement.
Arrange the following events in chronological order and choose the correct option from the following:
  1. Treaty of Constantinople
  2. Defeat of Napoleon
  3. Unification of Italy
  4. Unification of Germany
One mole of a hydrocarbon, on combustion in air, produces two moles of \( \text{CO}_2 \), two moles of \( \text{H}_2\text{O} \), and a large amount of heat. This hydrocarbon is:
Fill in the blank by choosing the correct option to complete the update on the school’s chess team.
It’s a victorious day!
Our school’s chess team ______ the interschool chess championship.
A horse, a cow and a goat are tied, each by ropes of length 14 m, at the corners A, B and C respectively, of a grassy triangular field ABC with sides of lengths 35 m, 40 m and 50 m. Find the total area of grass field that can be grazed by them
Prove that: \((\cot \theta - \csc \theta)^2 = \frac{1 - \cos \theta}{1 + \cos \theta}.\)
Assertion (A): The rainbow is a natural spectrum of sunlight in the sky.
Reason (R) : Rainbow is formed in the sky when the sun is overhead and water droplets are also present in air.
Which of the following statement(s) is (are) true about human heart?
(a) Right atrium receives oxygenated blood from lungs through pulmonary artery.
(b) Left atrium transfers oxygenated blood to left ventricle which sends it to various parts of the body.
(c) Right atrium receives deoxygenated blood through vena cava from upper and lower body.
(d) Left atrium transfers oxygenated blood to aorta which sends it to different parts of the body.
How does a physical activity facilitator maintain professional etiquettes?
Assertion (A): The sum of the first fifteen terms of the AP $21, 18, 15, 12, \dots$ is zero.
Reason (R): The sum of the first $n$ terms of an AP with first term $a$ and common difference $d$ is given by: \[ S_n = \frac{n}{2} \left[ a + (n - 1) d \right]. \]
Give reasons for the following:
(i) Alveoli in lungs are richly supplied with blood capillaries.
(ii) Respiratory pigment in the blood takes up oxygen and not carbon dioxide.
(iii) During anaerobic respiration, a 3-carbon molecule is formed as an end product instead of CO2 in human beings.
OR
(i) Name the movements that occur all along the gut in human digestive system. How do they help in digestion?
(ii) Where is bile juice stored in human body? List two roles of bile juice.
The LCM of 24, 36 and 60 in terms of their prime factors is :
The graph of a polynomial intersects the y-axis at one point and the x-axis at two points. The number of zeroes of this polynomial are :
How does a computer help us in our daily life?
How computers are beneficial for the hotel industry?
Enlist any 8 functions performed by the front office.
Which quality of a computer makes it unique in itself?