EASY
Earn 100

The period that contains only gaseous elements is

74.19% studentsanswered this correctly

Important Questions on Hydrogen

EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
The synonym for water gas when used in the production of methanol is:
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
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 75kg person would gain if all  1H atoms are replaced by  2H atoms is:
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
Identify the reaction which does not liberate hydrogen
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
Which of the following reactions is an example of use of water gas in the synthesis of other compounds?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
Which one of the following statements is incorrect ?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
Which of the following reactions increases the production of dihydrogen from synthesis gas?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
Among Mg, Cu, Fe, Zn the metal that does not produce hydrogen gas in reaction with hydrochloric acid is
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
Which of the following is water-gas shift reaction?
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

Out of the oxides given below which of them cannot be reduced by H2?

I-Al2O3; II-CuO; III-ZnO

EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
Which of the following statements about hydrogen is incorrect?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

Which of the following statements about hydrogen is incorrect?

EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
Which of the following properties of hydrogen is similar to halogen family?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
Which of the following statements is not true for hydrogen:
1) It exists as a diatomic molecule.
2) It has one electron in the outermost shell.
3) It can lose an electron to form a cation which can freely exist.
4) It cannot form ionic compounds.
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

The equation that represents the water-gas shift reaction is :

EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
The metal that produces H2 with both dil HCl and NaOH(aq) is
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
Which of the following forms of hydrogen emits low energy β- particles?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

In water-gas shift reaction, hydrogen gas is produced from the reaction of steam with.

EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
At 298.2 K the relationship between enthalpy of bond dissociation (in kJ mol-1) for hydrogen EH and its isotope, deuterium ED, is best described by:
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen
Which physical property of di-hydrogen is wrong?