जीवन की मौलिक इकाई - L5 | jeevan ki maulik ikai class 9 | Vigyan Chapter 5 | Pooja Mam | Doubtnut

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

A word is represented by only one set of numbers as given in any one of the alternatives . The sets of numbes given in the alternatives are represented by two classes of alphabets as shown in the given two matrices . The columns and rows of Matrix-I are numbered from 0 to 4 and that of Matrix -II are numbered from 5 to 9 . A letter from these matrices can be represented first by its row and next by its column for example P can be represented by 22, 75 etc, and L can be represented by 20 , 78 etc . Similarly you have to indentify the set for the word WATCH .

A word is represented by only one set of numbers as given in any one of the alternative . This sets of numbers given in the alternatives are represented by two classes as shown in the given two matrices . The columns and rows of Matrix -I are numbered from 0 to 4 and that of Matrix-II are numbered from 5 to 9 . A letter from these matrices can be represented first by its row next by its column , for example 'Y' can be represented by 21 , 87 etc 'L' can be represented by 32 , 78 etc . Similarly you have to identify the set for the word "TOWEL"

Iodobenzene (C_(6)H_(5)l) is prepared from aniline (C_(6)H_(5)NH_(2)) in a two step process as shown below C_(6)H_(5)NH_(2) + HNO_(2) + HCl rarr C_(6)H_(5)N_(2) .^(+)Cl^(-) + 2H_(2)O " "C_(6)H_(5)N_(2) .^(+)Cl^(-) + KI rarr C_(6)H_(5)I + N_(2) + KCl In an actual preparation 9.30 g of aniline was coverted to 16.32 g of iodobenzene. The percentage yield of iodobenzene is :

In the following question, a word is represented by only one set of numbers as given in any one of the alternatives. The set of numbers given in the alternatives is represented by two classes of alphabets as in two matrices given below. The columns and rows of Matrix I are numbered 0 to 4 and that of Matrix II are numbered 5 to 9. A letter from these matrices can be represented first by its row and then by its column, for example, P can be represented by 55, 69, etc. and L can be represented by 59, 68, etc. Identify the set for the word LAPSE.