9class Elements and valencies
Authored by Nomula Srinivas
Chemistry
9th Grade
Used 61+ times
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50 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
This element is octatomic?
Nitrogen
Oxygen
Carbon
Sulphur
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The valency of sulphate ion is
2-
2+
3-
3+
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In NH4Cl, the cation is
Cl
NH₄⁺
NH₄Cl
none
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which element has more number of atoms in molecule
Sulphur
calcium
Nitrogen
Carbon
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The formula of Aluminium ion is
Al⁺³
Al⁺¹
Al⁺²
Al°
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Formula of Ammonium ion is
NH₄⁺³
NH₄⁺¹
NH₄NH₄
NH₄°
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The formula of Bromide ion is
Br¹⁻
Br⁺¹
Br⁺²
Br⁻²
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