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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Write the Names of the Elements Present in the :- Acetic Acid

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प्रश्न

Write the names of the elements present in the:-

Acetic acid

एका वाक्यात उत्तर
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उत्तर

Acetic acid : Carbon, hydrogen, oxygen.

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पाठ 4: Atoms, Molecules and Radicals - Exercise

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सेलिना Concise Chemistry [English] Class 7 ICSE
पाठ 4 Atoms, Molecules and Radicals
Exercise | Q 2.6

संबंधित प्रश्‍न

TRUE \ FALSE

Neils Bohr gave the theory to explain the arrangement of protons in an atom.


WRITE SHORT ANSWER

What is radioactivity?


Define:- Atom


Write the names of the elements present in the:- 

Glucose


Write the names of `"Ca"("NO"_3)_2` compounds :


What is the maximum number of electrons present in:

1. first shell
2. second shell
3. third shell and
4. fourth shell


Write electronic configuration of oxygen, fluorine, sodium, silicon, argon.


Who originated the word ‘atom’ ?


A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.

What is such a particle called ?


A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.

What is the atomic numebr of X ?


Fill in the following blanks with suitable words :

In water, the proportion of oxygen and hydrogen is .............. by mass.


One nm is equal to :


Electron, proton, neutron are the types of ______ in an atom.


A radical take part – unsplit in a chemical reaction and retains its identity in reactions.
With reference to the radical –

  1. ammonium
  2. bisulphate
  3. carbonate

state the group of atoms present in each radical.


Select the correct answer to the statement given below:

The smallest particle of a substance – capable of independent existence and which retains the characteristics of the substance.


The basic unit of matter is ______.


State true or false. If false, correct the statement.

An atom is electrically neutral.


Define the term ions or radicals.


The volume occupied by 1 mole of a diatomic gas at S.T.P is ______


Give the salient features of “Modern atomic theory”.


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