JEE Plances JEE (Main) Chemistry
Which of the following contains greater number of oxygen atoms (A) 1 gm of O (B) 1 gm of O2 (C) 1 gm of O3 (D) All have same number of atoms
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9th February 2018
12:25 PM
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JEE Plances JEE (Main)
Which of the following samples contains the smallest number of atoms (A) 1gm of CO2 (B) 1gm of C8H18 (C) 1gm of C2H6. (D) 1gm of B4H10
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10th February 2018
10:02 AM
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ICSE X Chemistry Mole Concept and Stoichiometry
Calculate the number of atoms in 10 litre ofammonia
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7th July 2018
7:54 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
Calculate the approximate number of atoms present in 4.25 of NH³
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5th August 2018
1:05 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
Number of neutron present in 12x10 ^ 23 atoms of oxygen containing 17 grams of molecular weight: (Given NA = 6x10 ^ 23)
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5th August 2018
7:40 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
CALCULATE NO.OF ATOMS OF EACH TYPE IN 1.8g glocose
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17th August 2018
10:03 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
Calculate the no. Of atoms A) 5.6 L of NH3 B) 4.4g of Co2 C) 52u of He atomic weight =4u)
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12th November 2018
2:05 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
1.Find the ratio of the number of atoms present in 16g of O2 and 32g of O3. 2.Find the charge of 48g of Mg2+ ions in coulombs.
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16th May 2019
2:40 PM
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CBSE IX Chemistry Atoms and Molecules
solve this
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31st July 2019
12:37 PM
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JEE Main Chemistry Solid State
find no of atom
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16th April 2020
11:25 AM
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CBSE VII Chemistry Matter and its Composition
The ratio (by mass) of different atoms present in a molecule of ethyne is
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30th November 2020
11:44 PM
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CBSE IX Science Is Matter Around Us Pure?
A glass jar contains one molecule each of rock salt (NaCl), washing soda (Na2CO3), sodium sulfate (Na2SO4), and chalk (CaCO3). The maximum number of atoms is present in
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26th December 2020
11:56 AM
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CBSE XI Science Chemistry Some Basic Concepts in Chemistry
total mass of 1 dozen carbon atoms is
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29th June 2021
2:31 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
Gave the answer
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17th November 2021
10:07 PM
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CBSE IX Chemistry Atoms and Molecules
the ratio by mass of nitrogen and hydrogen in ammonia is 14:3 . calculate the ratio by number of atoms of elements in ammonia molecule .
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28th February 2022
7:03 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
calculate the number of hydrogen atoms and oxygen atom in 1 mole of water!
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22nd June 2022
8:09 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
Number of carbon atom present in 22 gram of CO2 is
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24th June 2022
5:00 PM
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