मराठी
सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

Complete the Statement Given Below by Filling in the Blanks with the Correct Words. Atoms Contain ________ with Positively Charged ________.

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प्रश्न

Complete the statement given below by filling in the blanks with the correct words.

Atoms contain ________ with positively charged ________.

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उत्तर

Atoms contains nucleus with positively charged protons.

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पाठ 5: Language of Chemistry - Objective type questions

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विराफ जे. दलाल Simplified Middle School Chemistry [English] Class 8 ICSE
पाठ 5 Language of Chemistry
Objective type questions | Q 1.3

संबंधित प्रश्‍न

 State the law of conversation of mass.


What do you observe when, barium chloride solution is mixed with sodium sulphate solution ?


When magnesium is burnt in air, there is an increase in mass after the reaction.


What is mass ?


If an object weighs 6 kg on earth. What will be its weight on moon ?


Give reason for the following.

Electricity is not considered matter.


Name the law of chemical combination which was given by Lavoisier.


State the law of conservation of mass. Give one example to illustrate this law.


Copper sulphate reacts with sodium hydroxide to form a blue precipitate of copper hydroxide and sodium
sulphate. In an experiment, 15.95 g of copper sulphate reacted with 8.0 g of sodium hydroxide to form
9.75 g of copper hydroxide and 14.2 g of sodium sulphate. Which law of chemical combination is illustrated by this data ? Give reason for your choice.


Potassium chlorate decomposes, on heating, to form potassium chloride and oxygen. When 24.5 g of potassium chlorate is decomposed completely, then 14.9 g of potassium chloride is formed. Calculate the mass of oxygen formed. Which law of chemical combination have you used in solving this problem ?


An ionic compound will be formed by the combination of one of the following pairs of elements. This pair of elements is :


State the main points of Landolt’s experiment for experimental evidence of the law. 


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

In Landolt’s experiment – the form in which the chemical energy stored up in the reactants __________ is released.


Match the following.

Law of conservation of mass Sir William Crookes
Law of constant proportion James Chadwick
Cathode rays Joseph Proust
Anode rays Lavoisier
Neutrons Goldstein

The chemical symbol for nitrogen gas is ______.


Name the four laws of chemical combinations.


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