Chemistry
Grade-8
Easy

Question

The substance that removes the oxygen or supplies hydrogen during the redox reaction is known as

  1. Catalyst
  2. Oxidizing agent
  3. Reducing agent
  4. Decarboxylating agent

Hint:

Reducing agent

The correct answer is: Reducing agent


    Addition of hydrogen to a substance and removal of oxygen from a substance is known as reduction. The substance which gives hydrogen to another substance or removes oxygen from another substance, in a reduction reaction is known as, reducing agent.

    Related Questions to study

    Grade-8
    Chemistry

    The temperature at which the oxy-hydrogen flame can be formed is

    The temperature at which the oxy-hydrogen flame can be formed is

    ChemistryGrade-8
    Grade-8
    Chemistry

    In the following chemical reaction, chlorine may be regarded as
     ?

    In the following chemical reaction, chlorine may be regarded as
     ?

    ChemistryGrade-8
    Grade-8
    Chemistry

    Which of the following is not correctly matched?

    Which of the following is not correctly matched?

    ChemistryGrade-8
    parallel
    Grade-8
    Chemistry

    The process by which ammonia is industrially prepared by using hydrogen is known as

    The process by which ammonia is industrially prepared by using hydrogen is known as

    ChemistryGrade-8
    Grade-8
    Chemistry

    Producer gas is the mixture of

    Producer gas is the mixture of

    ChemistryGrade-8
    Grade-8
    Chemistry

    Identify the isotope which is shown in the below figure:

    Identify the isotope which is shown in the below figure:

    ChemistryGrade-8
    parallel
    Grade-8
    Chemistry

    In the Bosch process, the catalytic reduction of steam to Hydrogen is carried out by _____

    In the Bosch process, the catalytic reduction of steam to Hydrogen is carried out by _____

    ChemistryGrade-8
    Grade-8
    Chemistry

    Read the following paragraph carefully and identify the P, Q, R and S from the following:
    During an experiment, steam is passed over ____P___ at 1000oC in the furnace. As a result, the ___Q _____ gas is formed. This reaction is endothermic in nature. This Q gas, when combined with an excess of steam, ferric oxide and ____R___, it gives the products___ S____.

    Read the following paragraph carefully and identify the P, Q, R and S from the following:
    During an experiment, steam is passed over ____P___ at 1000oC in the furnace. As a result, the ___Q _____ gas is formed. This reaction is endothermic in nature. This Q gas, when combined with an excess of steam, ferric oxide and ____R___, it gives the products___ S____.

    ChemistryGrade-8
    Grade-8
    Chemistry

    When iron metal is taken in place of zinc for the laboratory preparation of Hydrogen, the volume of Hydrogen collected is lower. Identify the reason.
    (i)  Metal becomes passive due to the formation of a protective coating.
    (ii)  The formation of insoluble sulphate stops the further reaction.
    (iii)  There are impurities in the metal.
    (iv)  The reaction becomes reversible.

    When iron metal is taken in place of zinc for the laboratory preparation of Hydrogen, the volume of Hydrogen collected is lower. Identify the reason.
    (i)  Metal becomes passive due to the formation of a protective coating.
    (ii)  The formation of insoluble sulphate stops the further reaction.
    (iii)  There are impurities in the metal.
    (iv)  The reaction becomes reversible.

    ChemistryGrade-8
    parallel
    Grade-8
    Chemistry

    The correct conditions for the production of Hydrogen gas from the water gas are:

    The correct conditions for the production of Hydrogen gas from the water gas are:

    ChemistryGrade-8
    Grade-8
    Chemistry

    In the laboratory preparation of Hydrogen, it is collected by downward displacement of water. It is also collected after all the air in the apparatus is allowed to escape because:

    In the laboratory preparation of Hydrogen, it is collected by downward displacement of water. It is also collected after all the air in the apparatus is allowed to escape because:

    ChemistryGrade-8
    Grade-8
    Chemistry

    The most stable isotopes among all naturally occurring isotopes are:

    The most stable isotopes among all naturally occurring isotopes are:

    ChemistryGrade-8
    parallel
    Grade-8
    Chemistry

    A promoter used in the Bosch process:

    A promoter used in the Bosch process:

    ChemistryGrade-8
    Grade-8
    Chemistry

    During the bosh process to prepare Hydrogen, some carbon dioxide is also obtained as a by-product. Write a chemical equation to remove this carbon dioxide by using caustic potash.

    During the bosh process to prepare Hydrogen, some carbon dioxide is also obtained as a by-product. Write a chemical equation to remove this carbon dioxide by using caustic potash.

    ChemistryGrade-8
    Grade-8
    Chemistry

    During the preparation of Hydrogen by the laboratory method. Arrange these steps in proper order.
    1. Fix a two-holed airtight stopper in the mouth of the flask.
    2. Take a few pieces of granulated zinc pieces in rare taken in a flat-bottomed flask
    3. Pass a thistle funnel through one hole and pass one end of the delivery tube through the other hole.
    4. Now pour some dilute hydrochloric acid through the thistle funnel.
    Place another end of the delivery tube inside the beehive shelf kept in a water trough.

    During the preparation of Hydrogen by the laboratory method. Arrange these steps in proper order.
    1. Fix a two-holed airtight stopper in the mouth of the flask.
    2. Take a few pieces of granulated zinc pieces in rare taken in a flat-bottomed flask
    3. Pass a thistle funnel through one hole and pass one end of the delivery tube through the other hole.
    4. Now pour some dilute hydrochloric acid through the thistle funnel.
    Place another end of the delivery tube inside the beehive shelf kept in a water trough.

    ChemistryGrade-8
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.