Most DIFFICULT Question ||MATHEMATICS || JEE Main 2026 (First Attempt) 🔥 | Shift 1 - 21st Jan 2026 🔥

JEE Main 2026 (First Attempt) Detailed Paper Discussion & Solution 🔥 | Shift 1 - 21st Jan 2026 🔥

Choose the correct answer. A thermodynamic state function is a quantity (i) used to determine heat

IUPAC Name of m-ClCH2C6H4CH2C(CH3)3 ||1-chloromethyl-3- (2 2-dimethylpropyl) benzene

Extraction of copper from its ore class 10th - blister copper

The reaction of cyanamide, NH2CN (s), with dioxygen was carried out in a bomb calorimeter, and ΔU

Which one of the following is not a quadratic equation? #10thclass

Which one of the following is not equal to unity ? (A) sin²x + cos²x (B) cot²x - cosec²x #10thclass

X-rays are more harmful to human beings than ultraviolet radiations because X-rays (A) Have ...

An event is most unlikely to happen. Its probability is A) 0.0001 B) 0.001 C) 0.01 D) 0.1

∫ sin^-1(x)dx from limit 0 to 1 || Integration of sin inverse x from 0 to 1 || #integration

IUPAC name of (CH3)3CCH=ClCC6H4I-p is 1-chloro-1-(4-iodophenyl)-3,3-dimethylbut-1-ene. #iupacname

If ΔABC~ΔPQR, then perimeter of the triangle PQR (in cm) is A) 12 B) 24 C) 18 D) 20 #class10math

Show that √2−√5 is an irrational number. #mathematicclass10 #class10mathextraquestion #10th

Q11Complete Solution -MATHEMATICS (BASIC) – Code No. 241SAMPLE QUESTION PAPERCLASS - X (2025 - 26)

In the figure given below, radius r of the circle which touches the sides of the triangle is #10th

From a point P, which is at a distance of 26cm from the centre O of a circle with radius 10 cm , the

1,1,1, 2 ,3, 3, 3- heptachloro-2-2-(trichloromethyl)propane - Formula , Structure & #iupac Naming

If in ΔABC and ΔDEF, AB/EF=AC/DE then they will be similar when...#mathematicclass10 #10thclass

The co-ordinates of the point which is mirror image of the point ( −3, 5) about x-axis are #10th

1-Bromo-4-chlorobut-2-yne - Chemical Formula, Structure & #iupac naming

The exponent of 3 in the prime factorization of 2025 is #10thmathsolution #10thmaths #cbseclass10

The exponent of 7 in the prime factorization of 2025 is #trickshots #trickyquestions #10thclass

The distance between the points (cos30°, sin30°) and (cos60°, – sin 60°) is #10th #10thmaths

In a process, 701 J of heat is absorbed by a system and 394 J of work is done by the system. What is

1-bromo-1-chloro-1,2,2-trifluoroethane - Structure , Formula & Naming #chemistry #iupac_name

If 1 + 2 + 3 + 4 +⋯+ 50 = 25k, then k = A) 50 B) 51 C) 49 D) 26 #10thclass

2-bromo-3-chlorobutane Structure , Formula & #iupac naming #iupacnomenclatureoforganicchemistry

If 2024𝒙+2025𝒚=1 ; 2025𝒙+2024𝒚=−1, then 𝒙−𝒚= A) 0 B) – 2 C) 2 D) – 1 #10thclass

A reaction, A + B → C + D + q is found to have a positive entropy change. The reaction will be

The sum of first n terms of an AP is 5n²-n. Find the nth term of the AP .

Q22 Complete || 10th || Mathematics Sample Paper Basic || Find the radius of the circle with centre

Find the radius of the circle whose end points of a diameter are (0, 0) and (6, 8).

Find the radius of the circle with centre at origin, if line l given by 𝑥+𝑦=5 is tangent to the

Calculate the number of kJ of heat necessary to raise the temperature of60.0 g of aluminium from

Q33 COMPLETE SOLUTION || The numerator of a fraction is 3 ...A train covers a distance of 300 km

A train covers a distance of 300 km at a uniform speed. If the speed of the train is increased by

The numerator of a fraction is 3 less than its denominator. If 2 is added to both of its numerator

The value of x for which 2x, (x + 10) and (3x + 2) are the three consecutive terms of an AP is#10th

10th || COMPLETE PROBABILITY for CBSE || Theory + ALL solved EXAMPLE + Exercises 14.1 or 15.1 & 15.2

10th || PROBABILITY || ALL solved EXAMPLE + Exercises 14.1 or 15.1 & 15.2

10th |Probability theory COMPLETE | Biased & unbiased , event , properties , sure & impossible event

10th || Probability|| All SOLVED Examples of NCERT || Detailed , Accurate & Simplified Solution

Example 5 : Two players, Sangeeta and Reshma, play a tennis match. It is known that the probability

Example 10* : In a musical chair game, the person playing the music has been advised to stop

10th || Probability Example 9 || CONCEPT & Question of ATLEAST , ATMOST & EXACTLY

Example 7 : Probability Class 10 | Chapter 15 Probability | There are 40 students in Class X of a

Example 8 : A box contains 3 blue, 2 white, and 4 red marbles. If a marble is drawn at random from

Example 13 : Two dice, one blue and one grey, are thrown at the same time. Write down all the

Example 12 : A carton consists of 100 shirts of which 88 are good, 8 have minor defects and 4 have

PHYSICAL CHEMISTRY VERY GOOD Questions CBSE BOARD 2025 |#chemistry #12thchemistryimportentquestions

Calculate ΔrG° and log Kc of the reaction ||2Cr(s) + 3Cd2+(aq) to gives 2Cr3+(aq) + 3Cd(s) || 2025

Example 11 : A missing helicopter is reported to have crashed somewhere in the rectangular region

Example 2 : A bag contains a red ball, a blue ball and a yellow ball, all the balls being of the

Example 3 : Suppose we throw a die once. (i) What is the probability of getting a number greater

Example 1 : Find the probability of getting a head when a coin is tossed once. Also find the

Henry's law constant for CO2 in water is 1.67×10^8 Pa at 298 K. Calculate the number of moles of

Probability || Exercise 14 .1 or 15.1 + Exercise 15.2 | | NCERT SOLUTIONS || Class 10th Maths

∆U° of combustion of methane is -X kJ/mol. The value of ∆H° is ? || Thermodynamics || Unit 5, NCERT

Chapter 15 : Probability | Exercise 15.2 | Question 1 to 5 | NCERT| | Class 10th Maths