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प्रश्न
Dalton’s atomic theory successfully explained
(i) Law of conservation of mass
(ii) Law of constant composition
(iii) Law of radioactivity
(iv) Law of multiple proportions
विकल्प
(i), (ii) and (iii)
(i), (iii) and (iv)
(ii), (iii) and (iv)
(i), (ii) and (iv)
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उत्तर
(i), (ii) and (iv)
Explanation -
Dalton’s atomic theory successfully explained law of conservation of mass, law of constant composition and law of multiple proportion
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संबंधित प्रश्न
Write the names of the elements present in the:-
Acetic acid
What does an atom consist of ? Explain.
Name three non-metals/radicals which have valency -1, -2, and -3.
State Dalton’s atomic theory.
Fill in the blank
A charged particle is called an _____
How is the size of an atom indicated ?
Why is it not possible to see an atom even with the most powerful microscope ?
Dalton's atomic theory says that atoms are indivisible. Is this statement still valid ? Give reasons for your answer.
Is it possible to see atoms these days ? Explain your answer.
Find the mass of 2 moles of nitrogen atoms.
Deduce from the datum provided.
| Datum | To deduce |
| \[\ce{_11^23Na}\] | Neutron number |
| \[\ce{_6^14C}\] | Mass number |
| \[\ce{_17^37 Cl}\] | Proton number |
Name the gas that.
Turns moist starch iodide paper blue black.
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form positive ion?
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form negative ion?
Define the following term with an example.
Element
State true or false. If false, correct the statement.
The basic unit of an element is molecule.
Assertion: An atom is electrically neutral.
Reason: Atoms have equal number of protons and electrons.
A sample of vitamic C is known to contain 2.58 ×1024 oxygen atoms. How many moles of oxygen atoms are present in the sample?
The smallest unit of an element is ______.
The most abundant type of atom is the universe is ______.
