Identify the correct statements from the foll | vedclass

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

Question

(D) In photosynthesis,$H_2O$ is oxidized to $O_2$ in photosystem $II$ at the oxygen-evolving complex.Statement $A$ is correct.$MgH_2$ is a saline (ion

Vedclass · Accepted Answer

$A \& C$ only

Vedclass · Answer

(D) In photosynthesis,$H_2O$ is oxidized to $O_2$ in photosystem $II$ at the oxygen-evolving complex.Statement $A$ is correct.$MgH_2$ is a saline (ionic) hydride,not an interstitial hydride. Interstitial hydrides are formed by $d$-block and $f$-block elements. Statement $B$ is incorrect.Sodium hexametaphosphate $(Na_6P_6O_{18})$,also known as Calgon,is used to remove permanent hardness of water by sequestering $Ca^{2+}$ and $Mg^{2+}$ ions. Statement $C$ is correct.Therefore,statements $A$ and $C$ are correct.

Identify the correct statements from the following.
$A$. In photosynthesis reaction,water is oxidized to oxygen.
$B$. An example for interstitial hydride is $MgH_2$.
$C$. Sodium hexametaphosphate is used in the removal of permanent hardness of water.

Similar Questions

The temperatures of maximum density in $H_2O$ and $D_2O$ respectively are:

In the following reaction,identify the nature of the product formed by the complete hydrolysis of the underlined atom at $R.T$.: $Na\underline{H} + H_2O \longrightarrow NaOH + H_2 \uparrow$

The maximum number of hydrogen bonds formed by a water molecule in ice is

$A$ sample of water containing some dissolved table sugar and common salt is passed through organic ion exchange resins. The resulting water will be

The high density of water compared to ice is due to

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Identify the correct statements from the following.$A$. In photosynthesis reaction,water is oxidized to oxygen.$B$. An example for interstitial hydride is $MgH_2$.$C$. Sodium hexametaphosphate is used in the removal of permanent hardness of water.