If Cl, Br, I, is a Dobereiner's triad and the atomic masses of Cl and I are 35.5u and 127u respectively, then the atomic mass of Br is

162.5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

91.5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

81.25

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

45.625

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C
81.25

In a triad, the atomic mass of the central atom is nearly an average of the other two atoms. In the triad Cl, Br, I, the mass of Br will be the average mass of Cl and I.

So, the atomic mass of Br = $\frac{35.5 + 127}{2} = 81.25$

Suggest Corrections

Similar questions

Q. Cl, Br, I follows Dobereiner's triads, the atomic masses of Cl and I are 35.5 and 127 respectively. The atomic mass of Br is :

If chlorine, bromine and iodine form a Dobereiner's triad and the atomic masses of chlorine and iodine are 35.5 u and 127.0 u respectively, then the atomic mass of bromine is _____.

Q. Atomic wt. of

C l = 35.5

and of

I = 127

. According to Doeberiner triad rule atomic wt. of

B r

will be:

Q. The atomic mass of lithium(Li) and sodium(Na) are 7 u and 23 u respectively. Lithium, sodium, and potassium form Dobereiner's triad. What is the atomic mass of potassium(K)?

Q. The atomic mass of lithium (Li) and sodium (Na) are 7 u and 23 u respectively. If lithium, sodium, and potassium form Dobereiner's triad, what is the atomic mass of potassium (K)?

Join BYJU'S Learning Program

If Cl, Br, I, is a Dobereiner's triad and the atomic masses of Cl and I are 35.5u and 127u respectively, then the atomic mass of Br is

The correct option is C 81.25 In a triad, the atomic mass of the central atom is nearly an average of the other two atoms. In the triad Cl, Br, I, the mass of Br will be the average mass of Cl and I. So, the atomic mass of Br = 35.5+1272=81.25

The correct option is C
81.25

In a triad, the atomic mass of the central atom is nearly an average of the other two atoms. In the triad Cl, Br, I, the mass of Br will be the average mass of Cl and I.

So, the atomic mass of Br = $\frac{35.5 + 127}{2} = 81.25$