हिंदी

What is the Valency of : Carbon in Ch4

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प्रश्न

What is the valency of :

carbon in CH4

एक पंक्ति में उत्तर
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उत्तर

Valency of carbon in CH4 is +4.

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अध्याय 1: The Language of Chemistry - Exercise 1 (C) [पृष्ठ १९]

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सेलिना Concise Chemistry [English] Class 9 ICSE
अध्याय 1 The Language of Chemistry
Exercise 1 (C) | Q 6.4 | पृष्ठ १९

संबंधित प्रश्न

Balance the following equation:

\[\ce{HNO3 + Ca(OH)2 -> Ca(NO3)2 + H2O}\]


Chemical equations are balanced to satisfy the law of ______.


Which of the following are endothermic reactions and which are exothermic reactions?

  1. Burning of natural gas
  2. Photosynthesis
  3. Electrolysis of water
  4. Respiration
  5. Decomposition of calcium carbonate

The metal M reacts vigorously with water to form a solution S and a gas G. The solution S turns red litmus to blue whereas gas G, which is lighter than air, burns with a pop sound. Metal M has a low melting point and it is used as a coolant in nuclear reactors.

  1. What is metal M?
  2. What is solution S? Is it acidic or alkaline?
  3. What is gas G?
  4. Write a balanced chemical equation for the reaction which takes place when metal M reacts with water.
  5. Is this reaction exothermic or endothermic?

In certain reaction an insoluble solid called precipitate is formed. State the colour and name of the precipitate formed in the following reaction involving addition of:

Iron [III] chloride to ammonium hydroxide.


Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.

Electrical energy


Balance the following simple equation:

SO2   +   O2  ⇌  SO3 


With reference to a chemical equation state which of the statements 1 to 5 pertain to A or B.
A: Information provided by a chemical equation. 
B: Limitations of a chemical equation.

  1. The nature of the individual elements.
  2. The speed of the reaction.
  3. The state of matter in which the substance is present.
  4. The completion of the reaction.
  5. The direction of the reaction.

Which of the following is the correct observation of the reaction shown in the above set up?


Dil. HCl is added to Zn granules. How will you prove that chemical change has taken place here? Support your response with two arguments.


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