Home
Class 8
CHEMISTRY
Explain giving reasons: In which of the ...

Explain giving reasons: In which of the following situations water will get hearted in shorter time?
Srikar kept water beaker near the wick in the yellow part of a candle flame.

Promotional Banner

Topper's Solved these Questions

  • COMBUSTION, FUELS AND FLAME

    NCERT TELUGU|Exercise Improve your learning|27 Videos
  • ELECTRICAL CONDUCTIVITY OF LIQUIDS

    NCERT TELUGU|Exercise Think and discuss|3 Videos

Similar Questions

Explore conceptually related problems

Explain giving reasons: In which of the following situations water will get hearted in shorter time? Sonu kept water beaker in the outermost part of the flame.

Which of the following processes are chemical changes? Give reasons. Evaporation of water.

Identify which of the following statements are wrong and give reasons. That which lives in water cannot eat animals.

Read the given information and answer the following questions. A survey was conducted in two villages, Vanaparthy and Vaddicherla of Warangal district in Telangana State. The first with no scarcity and the second with scarce groundwater. Well census was carried out in the villages in order to get a complete picture of well irrigation and its status as well as availability of water. There are no alternative sources of supply as against wells in Vaddicherla, where there is an existing tank that has been converted into a percolation tank, so that the water situation is much better in Vanaparthy. In which village, do you suggest drip irrigation ?

A compound (A) is greenish crystalline salt, which gave the following results. i) Addition of BaCl_(2) solution to the solution of (A) results in the formation of white ppt. (B). which is insoluble in dil HCL ii) On heating (A), water vapours and two oxides of sulphur, (C) and (D) are liberated leaving a red brown residue (E) iii) (E) dissolves in warm conc. HCI to give a yellow solution (F). iv) With HS the solution (F) yields a pale yellow ppt. (G) which when filtered, leaves a greenish filtrate (H). v) Solution (F) on treatment with thiocynaate ions gives blood red coloured compound (I). The yellow solution is of

A compound (A) is greenish crystalline salt, which gave the following results. i) Addition of BaCl_(2) solution to the solution of (A) results in the formation of white ppt. (B). which is insoluble in dil HCL ii) On heating (A), water vapours and two oxides of sulphur, (C) and (D) are liberated leaving a red brown residue (E) iii) (E) dissolves in warm conc. HCI to give a yellow solution (F). iv) With HS the solution (F) yields a pale yellow ppt. (G) which when filtered, leaves a greenish filtrate (H). v) Solution (F) on treatment with thiocynaate ions gives blood red coloured compound (I). White ppt (B) is of

A compound (A) is greenish crystalline salt, which gave the following results. i) Addition of BaCl_(2) solution to the solution of (A) results in the formation of white ppt. (B). which is insoluble in dil HCL ii) On heating (A), water vapours and two oxides of sulphur, (C) and (D) are liberated leaving a red brown residue (E) iii) (E) dissolves in warm conc. HCI to give a yellow solution (F). iv) With H2S the solution (F) yields a pale yellow ppt. (G) which when filtered, leaves a greenish filtrate (H). v) Solution (F) on treatment with thiocynaate ions gives blood red coloured compound (I). Compound (A) is

Complex compounds are molecular compounds which retain their indentities even when dissolved in water. They do not give all the simple ions in solution but instead furnish complex ions. The complex compounds are often called coordination compounds because certain groups called ligands are attached to the central metal ion by coordinate or dative bonds. Coordination compounds exhibit isomerism, both structural and stereoisomerism. The struculre, magnetic property, colour and electrical properties of complexes are explained by various theories. which of the following pairs, both the complexes have the same geometry?

NCERT TELUGU-COMBUSTION: FUELS AND FLAME-EXERCISE
  1. Write an activity to prove that oxygen helps in burning.

    Text Solution

    |

  2. "Is combustion possible without the supply of oxygen? Discuss with you...

    Text Solution

    |

  3. Explain giving reasons: In which of the following situations water wil...

    Text Solution

    |

  4. List the ways adopted by fire fighters to combat fires.

    Text Solution

    |

  5. Draw the diagram of candle flame and label all the zones.

    Text Solution

    |

  6. Which one of the following is non combustible

    Text Solution

    |

  7. Name the fuel that is commonly used by most of the people

    Text Solution

    |

  8. Which of the following is used as a rocket fuel?

    Text Solution

    |

  9. The substance that catches fire at room temperature by heat

    Text Solution

    |

  10. Can we separate alcohol dissolved in water by using a separating funne...

    Text Solution

    |

  11. Which one of the following is suggested for vehicles,.

    Text Solution

    |

  12. Removing the unburnt materials from a heap of paper which caught fire

    Text Solution

    |

  13. Electrical fires can be controlled by

    Text Solution

    |

  14. Gas used is welding is

    Text Solution

    |

  15. Which zone of the flame is brightest

    Text Solution

    |

  16. FILL IN THE BLANKS : gas is liberated when improper combustion takes ...

    Text Solution

    |

  17. FILL IN THE BLANKS : Gaseous fuels have Value.

    Text Solution

    |

  18. FILL IN THE BLANKS : is used to control the burning of wood or paper.

    Text Solution

    |

  19. FILL IN THE BLANKS : gold smiths usezone of flame.

    Text Solution

    |

  20. FILL IN THE BLANKS : is a non supporter of combustion.

    Text Solution

    |