Chemistry Question Bank

NaH s H O NaOH aq H g -> and 8LiH Al Cl 2LiAlH 6LiCl -> In the above reaction, NaH and LiH are the examples of

CH ,NH ,H O and HF are the example of

Earlier, it was thought that in the non-stoichiometric hydrides, hydrogen occupies interstices in the metal lattice producing distortion without any change in its type. Consequently, they were termed as ………X…….. Here,…

Which of the following metals directly combine with hydrogen gas to give a hydride?

Alkenes combine with carbon monoxide and hydrogen in presence of octacarbonyldicobalt as catalyst under high temperature and pressure to form

Which property of hydrogen is shown by the following reactions ? (i) Fe3O4 + 4H2 -> 3Fe + 4H2O (ii) CO + H2 -> O ZnO Cr CH3OH

If a mole of hydrogen molecule is heated to a high temperature, then which of the following reaction take place ? (a) 2 g g g H 436kJmol H H -> (b) 2 g 2 g 2H 820kJmol 2H -> (c) 2 g 2 g g g H H 436kJmol …

Dihydrogen, under certain reaction condition, combines with almost all elements except noble gases to form binary compounds. The binary compounds are called

Which of the following reactions of hydrogen with non- metals represents Haber‟s process ? (a) heat 2H O 2H O; H 285.9kJmol -> (b) 673K,Fe 200atm 3H N 2NH ; H 92.6kJmol -> (c) hv H Cl 2HCl -> (d) 1100 C 2H C C…

…….X….. are crystalline, non-volatile and non- conducting in solid state. (X) Melts conduct electricity and on electrolysis liberate dihydrogen gas at anode. Here, X refers to

Which of the following hydrides is electron deficient?

The order of reactivity of halogens towards hydrogen is

ZnO Cu CO H ->product. Identify the product formed in the given reaction. (a) CH COOH (b) CO (c) C O (d) CH OH

Which of the following properties of hydrogen is incorrect?

Which of the following gas in insoluble in water?

Which of the following is not a property of hydrogen?

Name the gas, which is colourless, odourless, tasteless, combustible, lighter than air and insoluble in water.

The chemical reactions of dihydrogen are accomplished by

On burning hydrogen in air, the colour of flame is

Hydrogenation of vegetable oils using nickel as a catalyst gives edible fats which is/are known as

In context with the industrial preparation of hydrogen from water gas (CO + H2), which of the following is the correct statement?

Which of the following statement is correct regarding properties of hydrogen?

Water gas is mixed with steam and the mixture is passed over heated Fe2O3 in presence of Cr2O3. The mixture when passed in water dissolves CO2 and dihydrogen left undissolved is collected. This method of preparation o…

Hydrogen does not possess the metallic characteristics under normal conditions because

The temporary hardness of water due to calcium bicarbonate can be removed by adding