Question
The table gives some properties of an element.
Which other property does this element have?
A. acts as a catalyst
B. brittle
C. forms an acidic oxide
D. highly reactive with water
Answer/Explanation
Ans:
A
Question
Element M forms both M+ and M2+ ions.
In which part of the Periodic Table is M placed?
- Group I
- Group II
- Group III
- transition elements
Answer/Explanation
Ans:
D
Question
The properties of an element are listed.
Its melting point is 3414 $^{\circ}$C.
Some of its compounds are catalysts.
It has variable oxidation states.
Where is the element found in the Periodic Table?
A alkali metals
B halogens
C noble gases
D transition elements
Answer/Explanation
Ans: D
Question
Which elements in the table are transition elements?
A E and G B E and H C F and G D F and H
Answer/Explanation
Ans: D