Soft heavy metal melts at ${30\,^o}C$ and is used in making heat sensitive thermometers the metal is
Soft heavy metal melts at ${30\,^o}C$ and is used in making heat sensitive thermometers the metal is
- A
Galium
- B
Sodium
- C
Potassium
- D
Caesium
Similar Questions
Which match is not incorrect ?
Which match is not incorrect ?
Why does boron trifluoride behave as a Lewis acid?
Why does boron trifluoride behave as a Lewis acid?
Write balanced equations for:
$(i)$ $BF _{3}+ LiH \rightarrow$
$(ii)$ $B _{2} H _{6}+ H _{2} O \rightarrow$
$(\text { iii }) NaH + B _{2} H _{6} \rightarrow$
$(i v) H_{3} B O_{3} \stackrel{\Delta}{\longrightarrow}$
$( v ) Al + NaOH \rightarrow$
$( v i ) B _{2} H _{6}+ NH _{3} \rightarrow$
Write balanced equations for:
$(i)$ $BF _{3}+ LiH \rightarrow$
$(ii)$ $B _{2} H _{6}+ H _{2} O \rightarrow$
$(\text { iii }) NaH + B _{2} H _{6} \rightarrow$
$(i v) H_{3} B O_{3} \stackrel{\Delta}{\longrightarrow}$
$( v ) Al + NaOH \rightarrow$
$( v i ) B _{2} H _{6}+ NH _{3} \rightarrow$
The weakest Lewis acid is
The weakest Lewis acid is
In the electrolytic extraction of aluminium, cryolite is used
In the electrolytic extraction of aluminium, cryolite is used