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Study of the First Element - Hydrogen — Practice Quiz

ICSE · Class 9 · Chemistry

Try a 4-question quiz on Study of the First Element - Hydrogen for ICSE Class 9 Chemistry: tap an answer to check it and see why.

44 questions40 flashcards9 formulas & key relations5 concepts

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An infographic illustrating hydrogen's similarities to both Group 1 (alkali metals) and Group 17 (halogens) elements, explaining why its position is unique and debated.
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Quick Quiz: Study of the First Element - Hydrogen

0/4

Tap an answer to check it instantly. No sign-up needed for these 4.

1

What is the atomic number of hydrogen?

2

What happens when sodium reacts with cold water?

3

Which metal is preferred for laboratory preparation of hydrogen from acids?

4

What is the molecular formula of hydrogen gas?

44 Questions·
multiple choicemultiple correcttrue falseorderingmatching

Sample Questions

1multiple correct

Which groups does hydrogen resemble due to its dual nature?

Show answer

Group IA (Alkali metals), Group VIIA (Halogens)

Hydrogen shows dual nature - it resembles alkali metals (Group IA) because both have one valence electron, and halogens (Group VIIA) because both need one electron to complete their outer shell.

2true false

Hydrogen burns with a 'pop' sound when mixed with air.

Show answer

True

When hydrogen mixed with air (oxygen) is ignited, it burns explosively with a characteristic 'pop' sound. This is the test for hydrogen gas.

3ordering

Arrange the following in order of increasing reactivity with water: Iron, Sodium, Zinc, Potassium

4multiple correct

Which acids can be used for laboratory preparation of hydrogen? (Select all correct)

Show answer

Dilute hydrochloric acid, Dilute sulphuric acid

Only dilute HCl and dilute H₂SO₄ are used. Nitric acid is not used because it's a strong oxidizing agent and oxidizes the hydrogen produced back to water.

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Frequently Asked Questions

What are the important topics in Study of the First Element - Hydrogen for ICSE Class 9 Chemistry?
Key topics in Study of the First Element - Hydrogen include Position, nature, and discovery of hydrogen, Hydrogen from water, acids, and alkalis, Laboratory preparation, purification, and collection of hydrogen, Industrial preparation, properties, and uses of hydrogen. Study these first, then practise questions on each for Class 9 exams.
How many practice questions are there for Study of the First Element - Hydrogen?
There are 44 questions on Study of the First Element - Hydrogen. Try the 4-question sample quiz on this page first; each answer shows an explanation when you tap it.

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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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