Put tick ( √ ) against correct choice and cross ( x ) against wrong choice in the following question: Isotopes of an element have

There will not be any negative marking for this. In this year's JEE Advanced, however, was the new Partial Marking Pattern in both the Paper I and II. What is the partial marking pattern? This pattern...

Deuterium and tritium. The importance of heavier isotopes of hydrogen is in nuclear reactor.

(i) Atomic number  The atomic number of an element is the total number of protons present in the atom of that element. For example, nitrogen has 7 protons in its atom....

Rutherford’s alpha-particle scattering experiment was responsible for the discovery of  (a) Atomic nucleus      (√ )  (b) Electron                 ( x )  (c) Proton     ...

Number of valence electrons in Cl− ion are:  (a) 16 ( x )  (b) 8 (√ )  (c) 17 ( x )  (d) 18 ( x )

(a) ► False  (b) ► False  (c) ► True  (d) ► True  (e) ► False

(a) True  (b) False  (c) False  (d) True  (e) False  (f) False  (g) True 

Tick    (√) against i, ii, iii, viii, x Cross (×) against iv, v, vi, vii, ix

The series is as follows + 5, +9, + 13, +17 ....difference of two consecutive terms (9 – 5 = 13 – 9 = 17 – 13) is 4. Hence, 35 is...

Third number is the sum of first two numbers Hence 27 is wrong number in the series. It should be 29.