Question 24
The mode of given data 15, 14, 19, 20, 14, 15, 16, 14, 15, 18, 14, 19, 15, 17 and 15 is:

A) 14
B) 15
C) 16
D) ​​​​​​​17

Q.

Mode of the data 15, 17, 15, 19, 14, 18, 15, 14, 16, 15, 14, 20, 19, 14, 15 is
(a) 14
(b) 15
(c) 16
(d) 17

Q.

Out of four numbers a, b, c, d, the average of first three is 16 and that of the last three is 17. If d = 19, a is:

Q. An element has successive ionization enthalpies as $1^{st}$ (940), 2080, 3090, 4140, 7030, 7870, 16000 and 19500 kJ $mo{l}^{-1}$^. To which group of the periodic table does this element belong?

Q. Question 2
The range of the data 25, 18, 20, 22, 16, 6, 17, 15, 12, 30, 32, 10, 19, 8, 11 and 20 is:

A) 10
B) 15
C) 18
D) 26

Q.

An element has successive ionization enthalpy as 940, 2080, 3090, 4140, 7030, 7870, 16000 and 19,500 KJ/mole. To which group of the periodic table does the element belong to?