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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

Write the Chemical Name of the Following and Also Give Their Molecular Formulae: Marble

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प्रश्न

Write the Chemical Name of the Following and Also Give Their Molecular Formulae:

Marble

एका वाक्यात उत्तर
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उत्तर

Calcium carbonate (Marble) — CaCO3

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Elements, Compounds and Mixtures - Exercise 3 (A) [पृष्ठ २४]

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एस.पी. सिंह Concise Chemistry [English] Class 8 ICSE
पाठ 3 Elements, Compounds and Mixtures
Exercise 3 (A) | Q 4.3 | पृष्ठ २४

संबंधित प्रश्‍न

Name: a non-metal which is lustrous


Name: the Hardest Naturally Occurring Substance


Define Elements.


Give reason: A frying pan is made up of steel but its handle is made up of wood.


Answer the following question:
Give the advantages of using symbols instead of names of elements or compounds.


Fill in the blank
The most abundant element in the atmosphere is  _______.


Match the statements in List I – 1 to 10 correct answers in List II-A to J.

  List I   LIst II
1 Fluorine and chlorine A Nitrogen
2 A diatomic molecule B Boron
3 A molecule containing the elements hydrogen and oxygen. C Reactants
4 A metalloid - showing properties of both metals and non-metals. D Chemical Formula
5 The term used for the substances which take part in the chemical reaction E Halogens
6 The term represents a  substance by means of symbols. F Water
7 The term used for the substances formed as a result of a chemical reaction G Nitric Acid
8 A compound containing one atom of zinc and two atoms of chlorine. H Products
9 The chemical name for nitrogen monoxide. I Phosphorus
10 A polyatomic molecule. J Zinc Chloride

 


Who are my companions?

Group 'A'   Group 'B'
1. Stainless steel (a) Non-metal
2. Silver (b) compound
3. Bhajani​ mixture for milling (c) Mixture 
4. Salt  (d) Element
5. Coal (e) Alloy
6. Hydrogen (f) Metal

Select the correct answer from the choice in the bracket.

The positively charged particle of an atom.


Differentiate between homogenous & heterogeneous mixtures.


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