हिंदी

What Name is Given to Those Elements Which Are Neither Good Conductors of Electricity like Copper Nor Insulators like Sulphur ?

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प्रश्न

What name is given to those elements which are neither good conductors of electricity like copper nor insulators like sulphur ?

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उत्तर

Elements that are neither good nor bad conductors of electricity, are called semi conductors.

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अध्याय 2: Is Matter Around Us Pure - Very Short Answers [पृष्ठ ५७]

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लखमीर सिंग Chemistry Part 2 [English] Class 9
अध्याय 2 Is Matter Around Us Pure
Very Short Answers | Q 19 | पृष्ठ ५७

वीडियो ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्न

Gases have definite volume but no definite shape.


Name a non-metal which is a good conductor of electricity.


Fill in the following blanks with suitable words :

An element is made up of only one kind of ........


The element which is not common between the compounds called baking soda and soda ash is


Which one of the following is not a metalloid ?


Which of the following statements are true for pure substances ?

  1. pure substances contain only one kind of particles
  2. pure substances may be compounds or mixtures
  3. pure substances have the same composition throughout
  4. pure substances can be exemplified by all elements other than nickel

Iron powder and sulphur powder were mixed together and divided into two parts A and B. When part A was heated strongly over a burner, then a substance C was formed. The part B was, however, not heated at all. When dilute hydrochloric acid was added to substance C, then gas D was evolved and when dilute hydrochloric acid was added to part B then gas E was evolved.

  1. What type of substance is B ?
  2. What type of substance is C ?
  3. Name the gas (i) D, and (ii) E ?
  4. State one characteristic property of gas D.
  5. Write one test to identify gas E.

If 25 mL of acetone is present in 150 mL of its aqueous solution, calculate the concentration of solution.


Fill in the following blank :

A colloid is a ..............mixture and its components can be separated by the technique known as ...............


Define Sol and give one example.


One of the following does not show Tyndall effect. This one is :


Name the process which can be used to recover salt from an aqueous salt solution.


With the help of a labelled diagram, describe the method of separating ammonium chloride from a mixture of ammonium chloride and common salt. Mention the difference in the properties of ammonium chloride and sodium chloride which has made this separation possible.


The boiling point of liquid argon is :


One of the following does not undergo sublimation. This one is :


What's the solution?

We need to make a sherbet quickly for some guests. But we only have sugar candy in the house.


Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.

Name a non-metal which exists as a liquid at room temperature.


Intermolecular space is maximum in ______.


______ is used for industrial refrigeration and transporting frozen food.


Write scientific reason.

Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.


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