Which of the following substance(s) is/are us | vedclass

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(D) Commonly used drying agents in laboratories include anhydrous calcium chloride $(CaCl_2)$,anhydrous phosphorus pentaoxide $(P_2O_5)$,sodium sulfat

Vedclass · Accepted Answer

Both $(A)$ and $(C)$

Vedclass · Answer

(D) Commonly used drying agents in laboratories include anhydrous calcium chloride $(CaCl_2)$,anhydrous phosphorus pentaoxide $(P_2O_5)$,sodium sulfate $(Na_2SO_4)$,and magnesium sulfate $(MgSO_4)$.Both anhydrous $P_2O_5$ and anhydrous $CaCl_2$ are effective dehydrating agents used to remove moisture from substances.Therefore,both options $(A)$ and $(C)$ are correct.

List-$I$ (Type of hydride)	List-$II$ (Example)
$(A)$ Electron precise	$(i)$ $SiH_4$
$(B)$ Saline	$(ii)$ $H_2O$
$(C)$ Electron deficient	$(iii)$ $MgH_2$
$(D)$ Electron rich	$(iv)$ $B_2H_6$

Which of the following substance$(s)$ is/are used in the laboratory for drying purposes?

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Atoms in hydrogen gas have a preponderance of which isotope?

Name the classes of hydrides to which $H_2O$,$B_2H_6$ and $NaH$ belong.

Match the following types of hydrides in List-$I$ with their examples in List-$II$.
List-$I$ (Type of hydride) List-$II$ (Example)
$(A)$ Electron precise $(i)$ $SiH_4$
$(B)$ Saline $(ii)$ $H_2O$
$(C)$ Electron deficient $(iii)$ $MgH_2$
$(D)$ Electron rich $(iv)$ $B_2H_6$

Liquid ammonia is used for refrigeration because

Assertion $(A)$: $HCl$ gas is dried by passing through concentrated $H_2SO_4$.
Reason $(R)$: $HCl$ gas reacts with $NH_3$ that gives white fumes.

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