Daily Practice Problems undefined Study of the First Element Hydrogen

Question 1:

Which among the following is element which like hydrogen has 1 valence electron?

(a) Na

(b) He

(d) O [Level: Moderate]

Question 2:

Which among the following statements is correct?

(a) Hydrogen is separated from CO by passing mixture through caustic potash solution.

(b) All metals react with acids to give hydrogen

(d) Very dil. nitric acid reacts with iron to produce hydrogen [Level: Difficult]

Question 3:

Which among the following is element which like hydrogen forms diatomic molecule?

(a) P

(b) S

(d) C [Level: Moderate]

Question 4:

Look at the following figure & answer the questions that follow:

(a) Which gas is prepared by this method marked as “A”?

(b) Name this method of collection. Why is this method used?

Question 5:

Samir is carrying out reaction to produce hydrogen gas. He took water, dil. hydrochloric acid & conc. sodium hydroxide. Which among the following metal will react with all three of them to give hydrogen?

(a) Fe

(b) Zn

(d) Pb [Level: Difficult]

Question 6:

What would happen when hydrogen reacts with molten sulphur? Give the balanced chemical equation. [Level: Easy]

Question 7:

How water gas is produced in the first step of Bosch’s process? Give the balanced chemical equation. Also state whether the reaction is endothermic or exothermic. [Level: Moderate]

Question 8:

Which among the following can be used in lab preparation of hydrogen by using Zn?

I. dil. HCl

II. dil. HNO₃

III. dil. H₂SO₄

IV. CuSO₄

(a) II

(b) IV

(d) I & III [Level: Moderate]

Question 9:

State two methods with the help of which H₂ & CO₂ gas is separated in bosch’s process? [Level: Moderate]

Question 10:

Iron reacts with steam liberating hydrogen. This reaction is

(a) combination reaction

(b) decomposition reaction

(d) irreversible [Level: Easy]

Question 11:

Why zinc granules are preferred over pure zinc in lab preparation of hydrogen? [Level: Moderate]

Question 12:

When inverted glass filled with hydrogen is placed over the burning candle, candle stops burning. From this what can we infer about the hydrogen gas?

(a) Supporter of combustion

(b) Non-supporter of combustion

(d) Denser than air [Level: Moderate]

Question 13:

Hydrogen is responsible for producing

(a) hydrogen chloride gas

(b) steam

(d) all of the above [Level: Moderate]

Question 14:

Which among the following element which is above H in the reactivity series but still not used to prepare H₂ gas by its reaction with water?

(a) Fe

(b) Pb

(d) Zn [Level: Easy]

Question 15:

The metal which does not react with cold water to produce hydrogen is

(a) sodium

(b) potassium

(d) calcium [Level: Easy]

Question 16:

Hydrogen and nitrogen react to give ammonia in presence of which catalyst?

(a) Mo

(b) Fe

(d) Cl₂[Level: Easy]

Question 17:

Fe₂O₃ + CO → Fe + CO₂

Above mentioned reaction is an example of

(a) only oxidation reaction

(b) only reduction reaction

(d) Decomposition reaction [Level: Difficult]

Question 18:

Reduction is

I. Addition of Hydrogen

II. Removal of Oxygen

III. Removal of Hydrogen

IV. Addition of Oxygen

(a) only IV

(b) only III

(d) both I & II [Level: Moderate]

Question 19:

When hydrogen & copper oxide reacts, Hydrogen gets oxidized & copper oxide gets reduced to form

(a) water & hydride

(b) water & copper

(d) oxide & hydrogen [Level: Difficult]

Question 20:

Hydrogen cannot be produced by reaction of water with metals which are __________ hydrogen in metal activity series.

(a) below

(b) left side

(d) right side [Level: Moderate]

**********

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All About Daily Practice Problems on ICSE 9 Chemistry Study of the First Element Hydrogen NCERT Chapter 6

Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on ICSE 9 Chemistry Study of the First Element Hydrogen NCERT Chapter 6 useful.

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