In how many ways can seven balls of different colours be distributed among four children?
16374
16384
16394
16349
Given that,
By the rule of product, this can be done in
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50 mL of 0.2 M ammonia solution is treated with 25 mL of 0.2 M HCl. If pKb of ammonia solution is 4.75, the pH of the mixture will be : Option: 1 3.75 Option: 2 4.75
JEE Main 2026 January 22 shift 2 difficulty level moderate; Mathematics toughest, say experts
JEE Main 2026 January 22 Shift 1 Analysis: Physics moderate, maths tricky, say students
JEE Main 2026 Jan 22 LIVE: Day 2 exam over; shift 2 difficulty level moderate; memory based questions soon
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