Practice questions
88551 published questions with worked solutions.
- In ABC, the ex-radii are r_1=5, r_2=3 and C= 2 . If , s, r represent the area, semi-perimeter and inradius of the triangle...Not in JEE syllabus
- The sum of the values of x satisfying the equation ^ -1 (x+3)- ^ -1 (x-3)= ^ -1 35 is ____.
- ABCDE is a regular n-sided polygon. If 1 |AB| = 1 |AC| + 1 |AD| , then the value of n is ____.Not in JEE syllabus
- If p, q, t are the lengths of the tangents to the incircle drawn parallel to the sides BC, CA, AB respectively of ABC (parts...Not in JEE syllabus
- The value of 4 ^ -1 15- ^ -1 1 70 + ^ -1 1 99 (in degrees) is ____.
- ABCD is a cyclic quadrilateral with |AB|=2, |BC|=5 and ABC= 3 . If |CD|=3, then |AD| is ____.Not in JEE syllabus
- For a regular polygon, let r and R be the radii of the inscribed and the circumscribed circles. A false statement among the...Not in JEE syllabus
- The possible values of (0, ) such that + 4 + 7 =0 areNot in JEE Main syllabus
- Consider separate solutions of 0.500 M C_2H_5OH(aq) , 0.100 M Mg_3(PO_4)_2(aq) , 0.250 M KBr(aq) and 0.125 M Na_3PO_4(aq) at...
- The metal that cannot be obtained by electrolysis of an aqueous solution of its salts is
- On heating an aliphatic primary amine with chloroform and ethanolic potassium hydroxide, the organic compound formed is:
- For the reaction SO_ 2(g) + 1 2 O_ 2(g) SO_ 3(g) , if K_P = K_C(RT)^x where the symbols have usual meaning then the value of x...
- Given below are the half-cell reactions: Mn^ 2+ + 2e^- Mn ; E^ = -1.18 V 2(Mn^ 3+ + e^- Mn^ 2+ ) ; E^ = +1.51 V The E^ for 3Mn^...
- If Z is a compressibility factor, van der Waals equation at low pressure can be written as:
- In the reaction CH_3COOH LiAlH_4 A PCl_5 B Alc. KOH C , the product C is -
- Among the following oxoacids, the correct decreasing order of acid strength is -
- Which one of the following properties is not shown by NO?
- Which series of reactions correctly represents chemical relations related to iron and its compound?Not in JEE Main or NEET syllabus
- CsCl crystallises in body centred cubic lattice. If 'a' is its edge length then which of the following expressions is correct?Not in JEE Main or NEET syllabus
- Which one is classified as a condensation polymer?Not in JEE Main or NEET syllabus