The most abundant elements by mass in the body of a healthy human adult are : Oxygen (61.4%); Carbon (22.9%), Hydrogen (10.0%); and Nitrogen (2.6%). The weight which a 75 kg person would gain if all $H^{1}$ atoms are replaced by $H^{2}$ is :

15 kg

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

10 kg

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

7.5 kg

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

37.5 kg

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

Open in App

Solution

The correct option is C 7.5 kg
Mass of hydrogen in adult human = $(10 / 100) \times 75 = 7.5 k g$
Replacing $H^{1}$ by $H^{2}$ would replace 7.5 kg with 15 kg.
$∴$ Net gain = $7.5 k g$

Hence the correct option is (a).

Suggest Corrections

Similar questions

Q. The most abundant elements by mass in the body of a healthy human adult are: Oxygen

(61.4 %)

, Carbon

(22.9 %)

, Hydrogen

(10.0 %)

and Nitrogen

(2.6 %)

. The weight which a 75 kg person would gain if all

H^{1}

atoms are replaced by

H^{2}

atoms is:

Q. The most abundant elements by mass in the body of a healthy human adult are : Oxygen (61.4%); Carbon (22.9%), Hydrogen (10.0%); and Nitrogen (2.6%). The weight which a 75 kg person would gain if all

H^{1}

atoms are replaced by

H^{2}

is :

 JEE MAIN 2017

The most abundant elements by mass in the body of a healthy human adult are:
Oxygen (61.4%); Carbon (22.9%), Hydrogen (10.0%); and Nitrogen (2.6%). The weight which a 75 kg person would gain if all 1H atoms are replaced by 2H atoms is_______.

Join BYJU'S Learning Program

The most abundant elements by mass in the body of a healthy human adult are : Oxygen (61.4%); Carbon (22.9%), Hydrogen (10.0%); and Nitrogen (2.6%). The weight which a 75 kg person would gain if all H1 atoms are replaced by H2 is :

The correct option is C 7.5 kgMass of hydrogen in adult human = (10/100)×75=7.5 kg Replacing H1 by H2 would replace 7.5 kg with 15 kg. ∴ Net gain = 7.5 kg Hence the correct option is (a).

The most abundant elements by mass in the body of a healthy human adult are : Oxygen (61.4%); Carbon (22.9%), Hydrogen (10.0%); and Nitrogen (2.6%). The weight which a 75 kg person would gain if all $H^{1}$ atoms are replaced by $H^{2}$ is :

The correct option is C 7.5 kg
Mass of hydrogen in adult human = $(10 / 100) \times 75 = 7.5 k g$
Replacing $H^{1}$ by $H^{2}$ would replace 7.5 kg with 15 kg.
$∴$ Net gain = $7.5 k g$

Hence the correct option is (a).