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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

Select the Correct Answer from A, B, C, D and E for the Statement Given Below: an Atom Or Group of Atoms _________ Having a Resultant Charge. - Chemistry

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प्रश्न

Select the correct answer from A, B, C, D & E for the statement given below:

An atom or group of atoms _________ having a resultant charge.

पर्याय

  • Solid

  • Vaporization

  • Ion

  • Gases

  • Heat

MCQ

उत्तर

An atom or group of atoms Ion having a resultant charge.

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पाठ 1: Matter - Objective type questions

संबंधित प्रश्‍न

What are molecules ?


Define the following term  of Atom .


All kinds of matter


Name the property which enables metals to be drawn into wires.


Classify the following as elements or compounds :
Iron, Iron sulphide, Sulphur, Chalk, Washing soda, Sodium, Carbon, Urea


Classify the following into metals, non-metals and metalloids:
Silicon, Mercury, Diamond, Sulphur, Iodine, Germanium, Sodium, Carbon, Magnesium, Copper, Boron, Helium


“Is malleable and ductile” best describes :


Which one of the following is not a metalloid ?


The elements which normally exist in the liquid state are :


Which of the following does not have a fixed melting point/boiling point ?


A, B and C are all liquids. Liquid A has a comparatively low boiling point. On heating, liquid A vaporises completely without leaving behind any residue. Liquid A is being used increasingly as a fuel in motor vehicles either alone or by mixing with petrol. Liquid B has a very high boiling point. It also vaporises completely on heating, without leaving any residue. Liquid B is a conductor of electricity and used in making thermometers. Liquid C has a moderate boiling point. On heating, liquid C vaporises leaving behind a white solid D which is used in cooking vegetables. The condensation of vapours from C give a liquid E which turns anhydrous CuSO4 to blue.

(a) Which liquid could be an element ? Name this element.

(b) Which liquid could be a mixture ? Name this mixture.

(c) Which liquid could be a compound ? Name this compound.

(d) What could the solid D be ?

(e) What do you think is liquid E ?


Classify the following into true solutions and colloidal solutions:

Ink, Salt solution, Starch solution, Blood, Sugar solution


You have been given a suspension and a solution. How could you tell the difference between them by their appearance ?


Define solubility of a substance. How does it vary with temperature ?


Fill in the following blanks with suitable words :

The separation of liquids by fractional distillation is based on the difference in their .....................


Explain how, impure copper sulphate can be purified by crystallisation.


What's the solution?

We need to rub salt on a corncob, but only salt crystals are available.


Celsius scale is a scale of temperature in which zero represents the melting point of ice and 100 represents the boiling point of water.


Define the term matter.


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