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1. What do u observe when HCl is added to ZnS? ?
Do v write answer directly as:
A gas is evolved which smells like rotten eggs
OR we write as
When HCl is added to ZnS, a gas is evolved which smells like rotten eggs
2. Do we need to write percentage of each metal in an alloy...if asked or just names of metal is enough.
3. Two hydrocarbons X and Y containing carbon and hydrogen only have vapour density 13 and 39 respectively. Find the molecular formula of X and Y.
(Plz send the working also...) |
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| asked by Theodore Coelho (theodore) 6 years ago |
3 |
Will any marks are deducted if we write the answer starting from because for reasoning Questions ?? |
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| asked by Ansh Singh (anshkush) 6 years ago |
3 |
Hi when will economics, commercial applications and evs specimen paper 2018 be uploaded? thanks |
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| asked by Salonee Kumar (saloneekumar) 6 years ago |
0 |
Guys since I use the Viraf dalal book, I have finally decided that I will tear out and make pape planes or burn all the foolish reviews and comments of teachers. I don't know about you all, its honestly a waste of paper |
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| asked by Aameya Kulkarni (aameyak) 6 years ago |
7 |
Can we convert methane to methanoic acid directly in the following way...in just 1 step by catalytic oxidation.?
CH4 + 3[O] ----(KMnO4/ H2SO4)---> HCOOH + H2O |
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| asked by Anushka K (anonymoususer) 6 years ago |
3 |
In viraf, a lot of unnecessary eqns are given in organic. like reaction with h3po4 and all. Do we do that? |
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| asked by Momo (zenab13) 6 years ago |
2 |
I'm don't understand what's the problem with me. Luck isn't favouring me in the exams. Looking at the paper during reading time, makes me so happy that I can't tell. I usually know the answers of almost every question in the paper but when I'm on my way to home, some of my classmates discuss the answers with me. At that time I realise that I've committed a blunder. Somewhere I didn't attempt a 4 marker by mistake, somewhere I interchanged the answers, etc. Why is this happening?? I've toiled throughout the year yet I'm myself deducting my marks unknowingly. Is this happening with anyone else among my resmates??? |
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| asked by Aayush Joshi (aayushjoshi) 6 years ago |
8 |
Darth vader check this out
https://www.independent.co.uk/arts-entertainment/tv/news/the-big-bang-theory-stephen-hawking-tribute-cameo-jim-parsons-a8257041.html |
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| asked by Leander Vikram (eldiablo0829) 6 years ago |
3 |
+ 1 more questions by eldiablo0829
Finished organic and practicals woohoo |
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| asked by Leander Vikram (eldiablo0829) 6 years ago |
0 |
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who all have physical education after chemistry |
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| asked by Ayaan Mansuri (crq7) 6 years ago |
4 |
what is oscillating frequency of rod in term of Young's Modolus? |
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| asked by Mamta Doodhwal (mamtadoodhwal) 6 years ago |
3 |
