Question Text
Question 3 :
The correct order of reducing abilities of hydrides of $V$ group elements is:
Question 4 :
Which of the following metal forms a protective oxide layer to prevent corrosion?
Question 6 :
Which metal powder suspended in oil is used as a paint for mirrors?<br/>
Question 10 :
Consider the reaction, $LiH+AlH_{3}\rightarrow .....$ <br/>Which is the incorrect statement about this reaction?
Question 11 :
The correct order of melting point of 14th group element is:
Question 12 :
In the reaction,<br>$PCl_5(g) \rightleftharpoons PCl_3(g) + Cl_3(g)$ the amounts of $PCl_5, PCl_3$ and $Cl_2$ are $2$ mole each at equilibrium and the total pressure is $3$ atmospheres. The equilibrium constant, $K_p$ is:
Question 13 :
Which of the following elements of group V-A does not show allotropy?
Question 14 :
The 'pop' sound occurred due to formation of which gas :
Question 15 :
The power of halides of boron to act as Lewis acids decreases in the order<span> :</span>
Question 16 :
The correct increasing order of the stability of $Al^+,\,Ga^+,\,In^+,\,Tl^+$ ions are:
Question 18 :
Select the correct order with respect to acidic nature of the given compounds.
Question 19 :
Which one of the following is not hypovalent molecules / species?<br/>
Question 20 :
Assertion: Thallium (III) hydroxide is highly soluble in water.<br/>Reason: Thallium (III) hydroxide is the most basic among 13th group hydroxides.