Find the value of ^10C10 | Maths Questions a.2 b.1 c.4 d.6

Answers 1

Answer:

Step-by-step explanation:

10C10

= 10! / ( 10! * 0!)

= 10! / 10!

= 1

option b

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Which of the following has the highest electron affinity? a.O^- b.F^- c.F2 d.Cl2

Explanation:

option a. is correct O. ok check it

Find the missing letters......, SIY, OEU, KAQ, GWM, CSI a.VMC b.WMC c.VNC d.WNC

Step-by-step explanation:

Let's first find the relation between the first and second letter-

In SIY, S is the 19th letter and I is the 9th letter which means reduced by 10.

In OEU O=15 E=5 15-5=10

In KAQ K= 11 A=1 11-1=10

Same in GVM and CSI

So we are left with WMC as W=23 and M= 13

W-M = 10

We don't need to find the third letter because its same in all three.

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c.0.60 V_________

CuI(s) + e^ - - Cu(s) + I^ - ; E^oCu^ + /Cu = - 0.16 V Zn^2 + (aq) + 2e^ - - Zn(s); E^oZn^2 + /Zn = - 0.76 V Calculate the EMF.

The function of AlCl3 in Friedel - Craft's reaction is: a.To absorb HCl b.To absorb water c.To produce nucleophile d.To produce electrophile

d to produce electrophile

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