6 PM Class 10 NCERT भौतिक विज्ञान - प्रकाश- परावर्तन तथा अपवर्तन by Vipin Singh Sir| L3 Hindi Medium

JEE Mains & Advanced | Chemistry - Ideal Gases By Vipin Sir | L3 English Medium

Acids,Bases and pH - Class 10 Science | 7 PM Master Class By Vipin Sir

Consider the marks, out of 100, obtained by 51 students of a class in a test, given in Table 14.9. M a r k sN u m b e r\ o f\ S t u d e n t s0-10 5 10-20 10 20-30 4 30-40 6 40-50 7 50-60 3 60-70 2 70-80 2 80-90 3 90-100 9Tot a l 51 Draw a frequency polygon corresponding to this frequency distribution table.

On passing 10.0 L of a gaseous mixture of NO_(2) and N_(2) at STP, through an NaOH solution, a mixture of NaNO_(2) and NaNO_(3) is formed 6.32 g of KMnO_(4) is required to oxidise above NaNO_(2) in H_(2)SO_(4) medium. Determine the percentage by mass of gaseous mixture (N_2 does not react with NaOH )

Electricity - 3 |Class - 10th Physics| Science Chapter 12| CBSE NCERT | Rajesh Suthar Sir

Consider the marks, out of 100, obtained by 51 students of a class in a test, given in Table 14.9. M a r k s"N u m b e r o f S t u d e n t s"0-10 5 10-20 10 20-30 4 30-40 6 40-50 7 50-60 3 60-70 2 70-80 2 80-90 3 90-100 9Tot a l 51 Draw a freque