Home
Class 12
BIOLOGY
The primitive sea containing molecules o...

The primitive sea containing molecules of organic substance free of ............ is known as Hot dilute soup of primitive broth.

A

Sulphur

B

Carbon

C

Nitrogen

D

Oxygen

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • ORIGIN AND EVOLUTION OF LIFE

    CHETANA PUBLICATION|Exercise Exercise|66 Videos

  • Organisms and Populatoins

    CHETANA PUBLICATION|Exercise EXERCISE|48 Videos

  • PLANT GROWTH AND MINERAL NUTRITION

    CHETANA PUBLICATION|Exercise Exercise|94 Videos

Similar Questions

Explore conceptually related problems

The term hot dilute soup was given by

In 1953 S.L. Miller created primitive earth conditions in the laboratory and gave experimental evidence for origin of first from of life from pre existing non-living organic molecules.The primitive earth conditions created include:

The first form of life on earth consisting of nucleic acid along with inorganic and organic molecules are known as................

Metals get attacked by substances around it such as moisture, acids, etc. Metal is said to 'corrode' due to this attack and the process is called corrosion. Many metals like iron, copper, silver, etc. get corroded. When iron is exposed to moist air, it undergoes corrosion and a reddish brown coloured solid layer is formed on its surface. Corrosion of iron, which is known as rusting, is a serious problem as enormous amount of money is spent every year to replace damaged iron. Similarly, copper reacts with moisture and. CO_(2) in air to form a green coloured coating of basic copper carbonate on its surface. Silver acquires a black colour when exposed to air containing H_(2)S due to the formation of silver sulphide on its surface. Based on the above paragraph, answer the following question. What happens to silver ornaments if they are exposed to air containing H_(2)S gas?

Metals get attacked by substances around it such as moisture, acids, etc. Metal is said to 'corrode' due to this attack and the process is called corrosion. Many metals like iron, copper, silver, etc. get corroded. When iron is exposed to moist air, it undergoes corrosion and a reddish brown coloured solid layer is formed on its surface. Corrosion of iron, which is known as rusting, is a serious problem as enormous amount of money is spent every year to replace damaged iron. Similarly, copper reacts with moisture and. CO_(2) in air to form a green coloured coating of basic copper carbonate on its surface. Silver acquires a black colour when exposed to air containing H_(2)S due to the formation of silver sulphide on its surface. Based on the above paragraph, answer the following question. Give the chemical formula of rust.

Metals get attacked by substances around it such as moisture, acids, etc. Metal is said to 'corrode' due to this attack and the process is called corrosion. Many metals like iron, copper, silver, etc. get corroded. When iron is exposed to moist air, it undergoes corrosion and a reddish brown coloured solid layer is formed on its surface. Corrosion of iron, which is known as rusting, is a serious problem as enormous amount of money is spent every year to replace damaged iron. Similarly, copper reacts with moisture and. CO_(2) in air to form a green coloured coating of basic copper carbonate on its surface. Silver acquires a black colour when exposed to air containing H_(2)S due to the formation of silver sulphide on its surface. Based on the above paragraph, answer the following question. Do gold ornaments corrode? Justify.

Metals get attacked by substances around it such as moisture, acids, etc. Metal is said to 'corrode' due to this attack and the process is called corrosion. Many metals like iron, copper, silver, etc. get corroded. When iron is exposed to moist air, it undergoes corrosion and a reddish brown coloured solid layer is formed on its surface. Corrosion of iron, which is known as rusting, is a serious problem as enormous amount of money is spent every year to replace damaged iron. Similarly, copper reacts with moisture and. CO_(2) in air to form a green coloured coating of basic copper carbonate on its surface. Silver acquires a black colour when exposed to air containing H_(2)S due to the formation of silver sulphide on its surface. Based on the above paragraph, answer the following question. What is rust?

Metals get attacked by substances around it such as moisture, acids, etc. Metal is said to 'corrode' due to this attack and the process is called corrosion. Many metals like iron, copper, silver, etc. get corroded. When iron is exposed to moist air, it undergoes corrosion and a reddish brown coloured solid layer is formed on its surface. Corrosion of iron, which is known as rusting, is a serious problem as enormous amount of money is spent every year to replace damaged iron. Similarly, copper reacts with moisture and. CO_(2) in air to form a green coloured coating of basic copper carbonate on its surface. Silver acquires a black colour when exposed to air containing H_(2)S due to the formation of silver sulphide on its surface. Based on the above paragraph, answer the following question. Why do we apply paint on iron articles?

Most of the organic compounds contain ______ linkages in their molecules .

CHETANA PUBLICATION-ORIGIN AND EVOLUTION OF LIFE -Exercise
  1. According to the ........................, all the living beings on th...

    Text Solution

    |

  2. The first chemicals formed on the earth were

    Text Solution

    |

  3. The primitive sea containing molecules of organic substance free of .....

    Text Solution

    |

  4. What is considered as a landmark in the origin of life ?

    Text Solution

    |

  5. The first form of life on earth consisting of nucleic acid along with ...

    Text Solution

    |

  6. Name the island where Darwin visited while formulating the theory of N...

    Text Solution

    |

  7. The prebiotic atmosphere of the earth was............

    Text Solution

    |

  8. The sum total of genes present in all individuals of interbreeding or ...

    Text Solution

    |

  9. Which of the following theory states that, the life originated on the ...

    Text Solution

    |

  10. The struggle between organisms of different species is called............

    Text Solution

    |

  11. Recently an almost complete lower jaw of a Dryopithecus has been obtai...

    Text Solution

    |

  12. The cranial capacity of Cro-Magnon man was about...........

    Text Solution

    |

  13. The phenomenon of industrial melanism demonstrates-

    Text Solution

    |

  14. The theory of natural selection was proposed by .

    Text Solution

    |

  15. Mutation theory was proposed by which scientist?

    Text Solution

    |

  16. Name of ship by which Darwin travelled during his famous voyages.

    Text Solution

    |

  17. On which plant did Hugo de Vries work during his experimentations?

    Text Solution

    |

  18. The struggle between the organisms of same species is called : ..........

    Text Solution

    |

  19. ...................... is defined as a connecting link between amphibi...

    Text Solution

    |

  20. ........... is a missing link between fish and amphibian.

    Text Solution

    |