Question

135
136
2) SO,
137
138
2) Zn
139
140
In the chemical reaction 48,0 H,0-26 +248 +2011"
1)water is ouidized 2siher is oxidized 3)hydrogen is reduced 4)silver is reduced
The ording agent in the following reaction SO, 271, S 35+2H,0 s
1) MS
3) S
4) HO
Which of the following changes is correct for oxidation state of bromine in the reaction,
Br - Bro,
I) - Ito 0
2) 0 to 5
3) 0 to -5
4) -I to-2
In the reaction, 2n+2H2Cl → Zn +2CI+H, the spectator ion is
1) CI
4) ALI
In which of the following transfer of five electrons takes places
1) Mo, Mol 2) Cro 4G
3) MnO, MnO,
4) Cro- →2C
Which substance serves as a reducing agent in the following reaction
141 +0,0 +3M -20+78,0 +31
1) H.O
2) Ni
3) H
4) Cr₂O;
The oxidation number of phosphorus in M&,PO, is
1) 5
2) -5
3) +6
The oxidation state of Cr in K,0,0,
2) +6
3) +7
What is the oxidation number of Fe in Fe(CO),?
D) ZATO
2+5
3) -5
The oxidation state of sulphur in H,SO,
142
3) -6
4)-8
1) +8
2) +6
The oxidation state of carbon in CHO is
145
1)-2
2) +2
3) 0
146. Identify the element that can exhibit higher oxidation number relatively
1)
2) CI
3) C
4) N
147 In which of the following compounds the oxidation state of sulphur is least?
1) SO,
2) SO,
3) H.S
4) H.SO
148. Conversion of PASO, to PAS is
4) Association
4) Mg Bry
4) Ca(NO)
1) Reduction 2) Oxidation 3) Dissociation
149 What is the formula of calcium bromide
1) CaBr
2) Caci,
3) MgCl,
150. What is the molecular formula of aluminium nitrate
1) AI(NO) 2) Me(NG), 3) NANO
151 The molar mass of CaCl, is
1) 100
2) 120
3) 11
4) 98​

Answer 1

Answer:

hsueevdodjvamwaowkee

eddkdofoeojwwfwleidr

r

rr

r

t

tieowoagskskdlwk

Explanation:

eheopswkpssnsizzvksd

dvdskpsdgd

d

gsldld