The formulas for ethane, ethene, and ethyne are C 2 H 6 , C 2 H 4 , and C 2 H 2 , respectively. Rank these compounds by the length of the carbon–carbon bond.

Explanation:

It is known that more is the number of bonds present within two carbon atoms then more strongly they are held together. Therefore, more is the overlapping taking place and smaller will be the length of carbon-carbon bond.

Hence, single bonds are larger in length, double bond is smaller in length as compared to a single bond and a triple bond is the smallest in length.

For example, in ethane () there are all single bonds.

In ethene (), there is one double bond present between the carbon atoms.

In ethyne (), there is a triple bond present between the carbon atoms.

Thus, we can conclude that given compounds are ranked in increasing order by the length of the carbon–carbon bond as follows.

       ethyne () < ethene () < ethane ()  

b. th3 n4zc4 pl4t3 15 c0nv3rg1ng w1th the s0uth 4m3ric4n pl4t3.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.