Tag: chemistry of non-metals

Question 1

Multiple choice chemistry chemistry of non-metals oxides of elements simple oxides oxygen

A basic oxide will be formed by the element:

$K$
$S$
$P$
$Kr$

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Answer

aluminium and zinc

Answer

$Al _2O _3$

Answer

$NO _2, P _4O _{10}, Al _2O _3, NO$

Answer

For lead +2, for tin +2

Answer

$B _{2}O _{3}$

Question 2

Multiple choice chemistry chemistry of non-metals oxides of elements simple oxides oxygen

Which of the following oxides react with both $HCl$ and $NaOH$?

$CaO$
${N} _{2}{O} _{5}$
${CO} _{2}$
$ZnO$

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Question 3

Multiple choice chemistry chemistry of non-metals oxides of elements simple oxides oxygen

The metals which can produce amphoteric oxides are:

sodium and aluminium
zinc and potassium
calcium and sodium

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Question 4

Multiple choice chemistry chemistry of non-metals oxides of elements simple oxides oxygen

Out of the following oxides, the amphoteric oxide is:

$Fe _2O _3$
$P _2O _5$
$N _2O$

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Question 5

Multiple choice chemistry chemistry of non-metals oxides of elements simple oxides oxygen

One of the following is not a neutral oxide. This is:

$CO$
$H _2O$
$N _2O$
$Na _2O$

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Question 6

Multiple choice chemistry chemistry of non-metals oxides of elements simple oxides oxygen

Which oxide is neutral state?

$CO _2$
$SO _2$
$P _2O _5$
$N _2O$

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Question 7

Multiple choice chemistry chemistry of non-metals oxides of elements simple oxides oxygen

Pick the group which does not contain a neutral oxide.

$MgO, N _2O _5, SO _3, N _2O$
$CO _2, SO _3, CaO, XeO _3$
$CO, SiO _2, SnO _2, Na _2O _3$

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Question 8

Multiple choice chemistry chemistry of non-metals oxides of elements simple oxides oxygen

In view of the signs of $\Delta _{r}G^{0}$ for the following reactions :
$PbO _{2} +Pb \rightarrow 2PbO, \Delta _ {r}..G..^{0},0$
$SnO _{2} +Sn \rightarrow 2SnO, \Delta _ {r}..G..^{0},0$

For lead +4, for tin +4
For lead +2, for tin +4
For lead +4, for tin +2

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Question 9

Multiple choice chemistry chemistry of non-metals oxides of elements simple oxides oxygen

Among the following which one has more acidic character?

$CO _{2}$
$N _{2}O _{3}$
None of these

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Question 10

Multiple choice chemistry chemistry of non-metals physical properties of non-metals uses of metals and non metals physical properties of metals and non-metals

Which one of the following oxidation states is not possible in metal carbonyls ?

+1
0
-1
+2

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