Question 1 :
Which of the following oxides of nitrogen are coloured in nature?
Question 2 :
Which one of the following elements does not form the compound, M$_{4}$ O$_{10}$ (M = element)?<br/><br/>
Question 5 :
Which of the following is correct statement regarding $N(CH_3)_3$ and $N(SiH_3)_3$?
Question 8 :
Which of the following is correct about V group Hydrides (from ammonia to Bismuthine)<br/>
Question 10 :
Nitrogen form $N_2$, but phosphorous form $P_2$, it'sat a time convert in $P_4$, reason is : -
Question 13 :
Which of the following pairs is obtained on heating ammonium dichromate?
Question 16 :
Assertion: $H_{3}PO_{4}$ and $H_{3}PO_{3}$ both are present in fertilizers.
Reason: $H_{3}PO_{3}$ increases the solubility of fertilizers.
Question 18 :
The type of bond between the atoms in a nitrogen molecule is :
Question 24 :
Maximum number of covalent bonds formed by N and P respectively are :
Question 25 :
Which of the following is an example of super octet molecule?
Question 28 :
Give examples of compounds of N with oxidation number -3 to +5.
Question 31 :
In all the group $15$ elements, the number of unpaired electrons in the valence shell is :
Question 33 :
Of the following hydrides which one has the lowest boiling point?
Question 34 :
Assertion: A mixture of nitrogen and carbon dioxide can be distinguished by passing it through lime water.
Reason: Nitrogen does not turn lime water milky.
Question 35 :
-1/3 oxidation state of nitrogen will be obtained in case of ________.
Question 36 :
When bismuth chloride is poured into a large volume of water, the white precipitate formed is:
Question 38 :
The oxides of $15^{th}$ group elements of the type $M_{2}O_{3}$ which will exhibit amphoteric or basic properties but no acidic properties are__________.<br/>
Question 39 :
The reactivity of the following compounds toward water is in the order:
Question 40 :
Which of these ions need to be stored in fairly acidic media?
