Which of the following is not correct?

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) . $LiOH$ is a weaker base than $NaOH$ because $Li^+$ has a higher charge density than $Na^+$,which increases the covalent character of the $Li-OH$

Vedclass · Accepted Answer

Hydrolysis of beryllium carbide gives acetylene

Vedclass · Answer

(D) . $LiOH$ is a weaker base than $NaOH$ because $Li^+$ has a higher charge density than $Na^+$,which increases the covalent character of the $Li-OH$ bond,making it less ionic and thus a weaker base. This statement is correct.$B$. Salts of $Be$ undergo hydrolysis due to the high charge density and small size of $Be^{2+}$ ion,which polarizes the water molecules. This statement is correct.$C$. $Ca(HCO_3)_2$ is soluble in water. This statement is correct.$D$. Hydrolysis of beryllium carbide $(Be_2C)$ gives methane $(CH_4)$,not acetylene $(C_2H_2)$. The reaction is: $Be_2C + 4H_2O \rightarrow CH_4 + 2Be(OH)_2$. Therefore,this statement is incorrect.

Similar Questions

In the given reaction cycle,$X$,$Y$ and $Z$ respectively are:
$CaCl_2 + Na_2CO_3 \rightarrow X + Y$
$X \xrightarrow{Z} CaCl_2$

Which of the following statements is not correct?

Bleaching powder is obtained by treating chlorine with

Which hydroxide of the $II^{nd}$ $A$ group metals has the lowest solubility product $(K_{sp})$ value at $25\,^{\circ}C$?

The fluoride which is most soluble in water is

Vedclass Test Series

Exam Paper Generator

Online Exam Module