But the answer is B. And both B and C are trigonal planar shaped molecules.
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Chemistry: Post your doubts here!
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Like I said, IF ALL THE BONDS ARE POLAR. Therefore C has no dipoles while B has.
Sorry, I mistyped. It's 'The dipoles in A C D cancel out but not in B'.
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I do not understand the periodic trends in period 3 for electrical conductivity, boiling points, ionic radii and atomic radii. many sources show different graph representation. It would be highly appreciated if anyone can explain the graphs for the properties. Is there any specific way to place values in the graphs? Cuz my teacher says you have to guess the values...
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Thnks a lot..these notes are much simpler. Where r u from?I hope this helps. If not don't hesitate to ask questionsView attachment 49764 View attachment 49765 View attachment 49766 View attachment 49767
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Karachi,Pakistan.
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I'am glad that it helped you
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Ans is D. Subtract the second ionization energy with the first, third with the second, fourth with third and so on. Where ever you find the greatest ionization change, will be the Group Number.
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Ans is B.
Enthalpy change=(Energy given out when bonds are made) - (Energy taken in when bonds are broken)
1800=2X-(994=496)
X=835KJ
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Yar
PH 4.14 hai kia?
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s10_qp_21.pdf
question 2 part c-ii
Where and why would C be ?
can some one answer this
Plz and thanku
question 2 part c-ii
Where and why would C be ?
can some one answer this
Plz and thanku
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Why is it C and not B,anyone??
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What's wrong in E and D?
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Why is 2 wrong?
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Please I want a quick reply of this question
Element Z has two isotopes Z 55 and Z 57 with the abundance ratio of 2:1 it exists in nature as Z3. The ratio of the peaks at m/e ratios 165:167:169:171 is 8 : x :y :1. What are the values of x and y. Please I need an urgent reply of this. Thanks.
Element Z has two isotopes Z 55 and Z 57 with the abundance ratio of 2:1 it exists in nature as Z3. The ratio of the peaks at m/e ratios 165:167:169:171 is 8 : x :y :1. What are the values of x and y. Please I need an urgent reply of this. Thanks.