List of top Questions asked in CBSE Class X

Write chemical equations to show what happens when an acid reacts with a:
Write chemical equations to show what happens when an acid reacts with a:
(i) Metal
(ii) Base
(iii) Carbonate
Write the name of the main product formed in each case
State the chemical property in each case on which the following uses of baking soda are based upon:
(i) As an antacid
(ii) As a constituent in making baking powder
(iii) In soda-acid fire extinguishers
Explain the main features of alluvial soil.

'संस्कृति' पाठ के आधार पर संस्कृति और असंस्कृति में अंतर बताइए।

Using prime factorisation, find the HCF of 144, 180 and 192.

पशु पर्व में छः–छः पशुओं का प्रदर्शन किया जाता है। (रेखांकित पदवृत्त का भेद लिखिए।) 
 

The journeys of Anne Frank and Valli teach us the vital lesson that optimism and self-assurance empower women to rise above circumstances and overcome obstacles. Examine the similarities.
Solve the equation \(4x^2 - 9x + 3 = 0\), using quadratic formula.

सोलर पैनल वाली कंपनी 'उर्जा' की ओर से अपने उत्पाद की जानकारी देने और बिक्री बढ़ाने हेतु एक आकर्षक विज्ञापन तैयार कीजिए। 
 

Find the nature of roots of the equation \(3x^2 - 4\sqrt{3}x + 4 = 0\).

'एक कहानी यह भी' की लेखिका के जीवन पर उनकी प्राध्यापिका शीला अग्रवाल का क्या प्रभाव पड़ा ?

Imagine you are a part of a 'Self Help Group' (SHG). Explain the working system of the Self Help Group (SHG) to the new member.
Name a metal found in the earth's crust:
(i) in free state and
(ii) in the form of its compound.
State where each of these metals are placed in the reactivity series of metals
In a right triangle ABC, right-angled at A, if $\sin B = \dfrac{1}{4}$, then the value of $\sec B$ is
Describe any three features of the multiparty system.
Suggest any two ways to increase women's representation in leadership roles.
How did Indians react to the Jallianwala Bagh massacre? Explain.
Find the zeroes of the polynomial: \[ q(x) = 8x^2 - 2x - 3 \] Hence, find a polynomial whose zeroes are 2 less than the zeroes of \(q(x)\)
Name the method by which Amoeba and Leishmania reproduce. Write a major difference in the way they divide to produce new individuals.

आप दिव्य/दिव्या हैं। आप अपनी आवासीय समिति के कल्याण सचिव हैं। अपनी सोसाइटी में आयोजित होने वाले सात दिवसीय योग शिविर की जानकारी देते हुए एक सूचना लिखिए। 
 

“Planning is the widely accepted strategy for judicious use of resources.” Explain the statement.
Describe the steps taken by French revolutionaries to create a sense of national unity and belonging.

From one face of a solid cube of side 14 cm, the largest possible cone is carved out. Find the volume and surface area of the remaining solid.
Use $\pi = \dfrac{22}{7}, \sqrt{5} = 2.2$

यदि कल्याण की भावना से नाता टूट जाए तो वह संस्कृति नहीं रह जाएगी । (रचना की दृष्टि से वाक्य-भेद का नाम लिखिए)

The sky appears dark to passengers flying at very high altitude