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प्रश्न
Write the names of the elements present in the:-
Acetic acid
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उत्तर
Acetic acid : Carbon, hydrogen, oxygen.
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संबंधित प्रश्न
Write the names of the elements present in the following compound.
Common salt
Name three non-metals/radicals which have valency -1, -2, and -3.
Give two examples for each of ionic and covalent bond.
Fill in the blank
A charged particle is called an _____
Fill in the blank
An _______ is electrically neutral.
Fill in the following blanks with suitable words :
In water, the proportion of oxygen and hydrogen is .............. by mass.
What value has been given to the mass of this reference atom ?
Is it possible to see atoms these days ? Explain your answer.
One nm is equal to :
An atom of an element X may be written as `""_9^4"X"`
(a) What does the figure 9 indicate?
(b) What does the figure 4 indicate?
(c) What is the number of protons in atom X?
(d) What is the number of neutrons in atom X?
(e) What is the number of electrons in atom X?
(f) How many electrons are there in the outermost shell of an atom of element X?
(g) Write the symbol of ion formed by an atom of element X.
Which of the following statement is correct about the atom of an element ?
Give scientific reason.
All the mass of an atom is concentrated in the nucleus.
Name the gas that.
Turns moist starch iodide paper blue black.
Define the following term with an example.
Compound
The volume occupied by 4.4 g of CO2 at S.T.P ______
Atoms of different elements having the same number of ______ are called isotones.
Give the salient features of “Modern atomic theory”.
Does the solubility of a substance change with temperature? Explain with the help of an example.
What are the 3 most abundant atoms on the earth?
Atoms have a radius of the order ______.
