Tag: hydrogen in periodic table

Questions Related to hydrogen in periodic table

Hydrogen does not combine with ______.

chemistry study of the first element - hydrogen position of hydrogen in the periodic table hydrogen in periodic table trends in groups and periods

  1. Sb

  2. Na

  3. He

  4. Zn

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Correct Option: C
Explanation:

Since Helium (He) is a noble gas and does not combines with hydrogen. Because bond formation is only favored when the final state of the two elements is more stable than their initial state. If a hydrogen atom bonded with a helium atom, neither of their 1s and 2s atomic orbital will be half/fully filled, which causes both atoms to be energetically unstable. Such compound will most likely break down immediately back to their respective atomic state.

Hydrogen exists in atomic state in which of the following compounds?

chemistry study of the first element - hydrogen position of hydrogen in the periodic table hydrogen in periodic table trends in groups and periods

  1. Metallic hydrides

  2. Ionic Hydride

  3. Molecular hydrides

  4. ${ H } _{ 2 }O$

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Correct Option: A
Explanation:
  • Metal hydrides are metals which have been bonded to hydrogen to form a new compound. Any hydrogen compound that is bonded to another metal element can effectively be called a metal hydride. Generally, the bond is covalent in nature, but some hydrides are formed from ionic bonds.
  • Hence option A is a correct answer.

Rogue element in the periodic table is______.

chemistry study of the first element - hydrogen position of hydrogen in the periodic table hydrogen in periodic table trends in groups and periods

  1. oxygen

  2. hydrogen

  3. astatine

  4. rhenium

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Correct Option: B
Explanation:

Rogue element in the periodic table is hydrogen, as its properties are similar with several groups. (alkali metals and halogens)

________ element has one electron in the outermost shell and attains duplet configuration after accepting one more electron and attains stability.

chemistry study of the first element - hydrogen position of hydrogen in the periodic table hydrogen in periodic table trends in groups and periods

  1. Helium

  2. Hydrogen

  3. Lithium

  4. Carbon

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Correct Option: B
Explanation:

Hydrogen has ${ 1e }^{ - }$ in outermost shell, in order to achieve stability either ${ e }^{ - }$ to be removed or added. When added it acquires a stable configuration forming duplet.

Hydrogen is the ________ element on the earth.

chemistry study of the first element - hydrogen position of hydrogen in the periodic table hydrogen in periodic table trends in groups and periods

  1. most abundant

  2. heaviest

  3. lightest

  4. none of these

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Correct Option: C
Explanation:

$H$ is the lightest element on earth as there is only $1$ proton and ${ 1e }^{ - }$. All the other elements have more than 1 electrons and protons along with neutrons.

Assertion (A): Hydrogen shows resemblance with alkali metals as well as halogens.
Reason (R): Hydrogen exists in atomic form only at high temperature.

chemistry study of the first element - hydrogen position of hydrogen in the periodic table hydrogen in periodic table trends in groups and periods

  1. Both A and R are true and R is the correct explanation of A

  2. Both A and R are true but R is not a correct explanation of A

  3. A is true but R is false

  4. A is false but R is true

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Correct Option: B
Explanation:

Hydrogen is having similarities with alkali metals and halogens any many properties and hydrogen exists In atomic form in high temperature but the reason not satisfy the assertion so assertion and reason are true.

In which of the following properties listed below, hydrogen does not show similarity with halogens?

chemistry study of the first element - hydrogen position of hydrogen in the periodic table hydrogen in periodic table trends in groups and periods

  1. Nature of the oxide

  2. Electropositive character

  3. Combination with alkali metals

  4. Atomicity

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Correct Option: B

Hydrogen does not combine with:

chemistry study of the first element - hydrogen position of hydrogen in the periodic table hydrogen in periodic table trends in groups and periods

  1. antimony

  2. sodium

  3. bismuth

  4. helium

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Correct Option: D
Explanation:

As helium is inert gas so hydrogen does not make any product with $He$.

In which property listed below hydrogen does not resemble alkali metals?

chemistry study of the first element - hydrogen position of hydrogen in the periodic table hydrogen in periodic table trends in groups and periods

  1. Tendency to form cation

  2. Nature of oxide

  3. Combination with halogens

  4. Reducing character

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Correct Option: B
Explanation:

Hydrogen shows all other properties like alkali metals (form cation, combine with halogens, reducing nature) but nature of oxide is different than metals.

The characteristics of hydrogen resemble the elements of__as well as__groups.

chemistry study of the first element - hydrogen position of hydrogen in the periodic table hydrogen in periodic table trends in groups and periods

  1. IIA and VA

  2. IIIA and VIA

  3. IIA and VIA

  4. IA and VIIA

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Correct Option: D
Explanation:

Because hydrogen has ${ 1e }^{ - }$ in its outermost shell which is ready to be donated like that a group $1A$ (alkali metals). Also hydrogen can accept an ${ e }^{ - }$ to from ${ H }^{ - }$ having ${ 2e }^{ - }$ in outer shell which is stable this resembles to $VIIA$ group (Halogen family), as they also require only one ${ e }^{ - }$ to fulfill their incomplete octet.