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Anomalous Behaviour of Beryllium
1. Beryllium Hydroxide is ______________ in nature.
a) acidic
b) basic
c) amphoteric
d) cannot say
Answer: amphoteric
2. Beryllium forms beryllium carbide on heating.
a) true
b) false
Answer: true
3. Beryllium and Aluminium are ______________ in nature.
a) electropositive
b) electronegative
c) metallic
d) fluorescent
Answer: electronegative
4. Which of the following is a correct formula for sodium meta aluminate?
a) Na2AlO4
b) Na2Al2O
c) Na2Al2O4
d) NaAl2O4
Answer: Na2Al2O4
5. Aluminium and beryllium are ______________ in nature.
a) metallic
b) active
c) passive
d) electropositive
Answer: passive
6. Does beryllium form complexes?
a) Yes
b) No
c) Maybe
d) Cannot say
Answer: Yes
7. Which of the following Statements do you think is true?
a) aluminium and beryllium are not stable in air
b) beryllium and aluminium share a diagonal relationship
c) the ionisation potential of beryllium is lower compared with its group
d) beryllium has a greater oxidation potential
Answer: beryllium and aluminium share a diagonal relationship
8. Which of the following element is different from the other group 2 elements?
a) magnesium
b) beryllium
c) calcium
d) strontium
Answer: beryllium
9. Beryllium has ______________ melting point and is ______________ than the other members of its family.
a) low, smoother
b) low, harder
c) higher, harder
d) higher, smoother
Answer: higher, harder
10. Does beryllium react with water?
a) Yes
b) No
c) Maybe
d) Cannot say
Answer: No