Microsoft PowerPoint - HSC Short Syllabus 1st Paper C 02 BV Dipro.pptx

CQ MCQ CQ MCQ CQ MCQ


( )

:
()
()
,
-



= × = ()
aA+ bB cC+ dD
,
Kc = (molL-1)Δn ; Δn= - KP = (atm)Δn ; Δn= -
KP = Kc(RT)Δn
, ? [ ]
,
2L 6 mol H2 ,5 mol N2 2 mol NH3 ?
KP , KC
KP , KC ( )

[ -]


() (ii) () ?
[ ]

MX g MX g + X g - ; MX 80% 2L (a) -
(b) K (c) ?
(Graph Basics)
? ?
?

(Relation between temperature and eq. constant)


Acid Base
H+ OH-
H+



H+, BF3 Cu+, Ca2+, AlCl3
H2O, CH3–NH2, NH3, OH–,
CO, Cl–
pH pOH
acidic neutral basic
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
01. = = ( )
H > [OH ] pH < pOH
H < [OH ] pH > pOH
02. 25C pH + pOH = 14 = pK
03. = − ∴ = = − ∴ =
[ ]
2M g + N g 2L g ; H = −ve i
O g + P g 2Q g ; H = +ve (ii)
[M, N, L, O, P Q ] () L 0.001M H SO pOH


(a) 2.672
(b) 2.772
(c) 2.872
(d) 2.972

pH
(i) : , :
,

(ii) : , :

-
, [ ]
,
[ ] = [ ] =
[ ]
() HNO H PO ? () II pH () III H OH pH

[ ]

() A H () A I B pH
K = 1. 8 × 10

(i) C H O + H O
° C H O + C H O
(ii) C H O +
° 2 CH CH OH + 2CO
(iii) CH CH OH + O
° CH COOH + H O
- - [BUET'18-19]
(CH COOH) 6 − 10% pH
4.74 pH 4.74

() -
[ ]




(CCl )
(CHCl )


(H SO )
(H CO )
(aq)
Ca OH
,



() [ (Kappa)]
() [ (Lamda)]
()
, =
=

=

×

[ =
/ =
]

,

×



Electricity Chemical Change

:

CuSO 3.7A 6h
(i) Cu ?
(ii) Cu ?
(iii) CuSO ?

,


[ ]

() () ‘’

Chemical Change Electricity

° ( ) °
Li /Li Li aq + e Li(s) −3.045 k /K K aq + e K(s) −2.92
Ca /Ca Ca aq + 2e Ca(s) −2.870
Na /Na Na aq + e Na(s) −2.714
Mg /Mg Mg aq + 2e Mg(s) −2.37
Zn /Zn Zn aq + 2e Zn(s) −0.763
Fe /Fe Fe aq + 2e Fe(s) −0.440
Ni /Ni Ni aq + 2e Ni(s) −0.250
Sn /Sn Sn aq + 2e Sn(s) −0.14
Pb /Pb Pb aq + 2e Pb(s) −0.13
/

Cu /Cu Cu aq + 2e Cu(s) +0.337
Pt/I l ; 2I I (s) + 2e 2I (aq) +0.530
Hg /Hg Hg aq + 2e 2Hg(s) +0.789
Ag /Ag Ag aq + e Ag(s) +0.799
Pt/Br l ; 2Br Br (aq) + 2e 2Br (aq) +1.07
Au /Au Au aq + 3e Au(s) +1.50
Pt/F (g), 2F F g + 2e 2F (aq) +2.87

Li K Ca Na Mg Al Zn Fe Sn Pb H Cu Hg Ag Pt Au
Li K Ca . . . . . . .

- ?
(a)
(b)
(c)
(d)
/ /
E < 0
E = 0 (The cell is dead)


25°C 1.0 molar

[′ A ′ ′B′ 12 24
E / = +2.36V I E / = +0.74V] () ? () () B -
[ ]

A : / ° = +0.76 V
C : / ° = 0.34 V
() A C () A ?
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