CBSE X Chemistry Hydrocarbons
why the position of hydrogen is not specified my meendelev
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5th March 2008
11:50 AM
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CBSE X Chemistry Periodic Classification of Elements
'Hydrogen occcupies a unique position in the Modern Periodic Table'. Justify the statement.
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2nd January 2018
4:44 PM
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ICSE IX Chemistry Study of First Element - Hydrogen
Which test should be made before collecting hydrogen in A gas jar??
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4th February 2018
9:02 PM
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CBSE XI Science Chemistry Hydrogen
what is difference between hydrogen and hydride
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17th June 2018
3:16 PM
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ICSE VIII Chemistry Hydrogen
how does hydrogen react with the following? write the equation for each and give the experimental condition. a) sodium b) sulphur. c) chlorine
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23rd June 2018
8:37 PM
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ICSE IX Chemistry Study of First Element - Hydrogen
how are the following prepared from hydrogen? give the conditions of reaction a) ammonia b) methyl alcohol c) water gas d) water e) methane
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23rd June 2018
8:50 PM
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ICSE VIII Chemistry Hydrogen
hydrogen forms a positive ion just like metals. still, it combines with very reactive metals
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23rd June 2018
8:57 PM
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ICSE IX Chemistry Study of First Element - Hydrogen
DALAL CHEMISTRY
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1st October 2018
3:53 PM
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ICSE IX Chemistry Study of First Element - Hydrogen
What is the chemical formula for Hydrogen?
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12th October 2018
2:17 PM
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ICSE VII Chemistry Hydrogen
When ignited, hydrogen burns in oxygen with a ‘ pop’ this is true or false
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16th February 2019
11:01 PM
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CBSE VIII Science Combustion and Flame
How to test hydrogen gas?
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7th July 2019
7:20 PM
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ICSE VIII Chemistry Hydrogen
hydrogen is.............. than air
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18th November 2019
9:43 PM
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ICSE IX Chemistry Study of First Element - Hydrogen
Why is hydrogen both metal and a non metal??
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22nd December 2019
9:34 AM
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ICSE VIII Chemistry Hydrogen
Hydrogen was discovered by
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30th December 2019
8:54 PM
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ICSE VIII Chemistry Hydrogen
hydrogen can be used as a fuel. give reasons
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9th January 2020
3:35 PM
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ICSE IX Chemistry Study of First Element - Hydrogen
Why hydrogen is not collected by downward displacment of air??
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22nd February 2020
7:05 PM
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CBSE X Chemistry Acids, Bases and Salts
What happen when we add zinc dust in place of zinc granules in NaOH solution?
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3rd March 2020
3:42 PM
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ICSE IX Chemistry
Why in periodic table hydrogen placed first
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31st May 2020
6:48 PM
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NEET NEET Chemistry Hydrogen
heavy hydrogen is used
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23rd February 2021
6:47 PM
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CBSE X Chemistry Metals and Non Metals
Why do only few metals form compounds when they react with hydorgen??
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22nd September 2021
11:16 PM
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ICSE VIII Chemistry Hydrogen
The Sun has ___ as largest constituent
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8th March 2022
6:54 PM
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CBSE IX Chemistry Atoms and Molecules
Why hydrogen atom does not have neutrons
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19th January 2023
7:25 PM
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