Question

C)3.6 107
D) 1.2x102
0.19 How many atoms of carbon are present in 34.24
A) 6.02 10
11) 72-1022
0.20 Absorption of Co, in kon solution during combustion analysis is
A Chemical change
C) Physical change
B) Neither chemical nor physical change
D) CO, absorbed in Mg(ClO4)2
0.21 10 moles of HCl is added to excess to magnesium and forms 4 moles of hydrop
percentage yield is
A) 40%
C) 80%
B) 60
D) 100%
Q.22 If you have 3.5 moles of hydrogen and 5 moles of nitrogen to produce ar
How much ammonia is produced
A) 34.088
C) 17.04g
D) None of these
Q.23
How many unstable radioactive isotopes have been produced through artificial disi
A) 280
C) 300
B) 40
D) 154
0.24 Empirical formula of vitamin C is
A) C140
B) C&H:07
D) C6H1206
2.25 Number of electrons in half mole of Nat
A) 10
C) 5
B) 5.5NA
D) 5NA
.26 Amount of products obtained from balanced chemical equation represes
B) 39,6g​

Answer 1

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