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(C) Dehydration of formic acid $(HCOOH)$ with conc. $H_2SO_4$ is a laboratory method,not a commercial one.$(B)$ Direct oxidation of carbon in limited

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Passing steam over hot coke

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(C) Dehydration of formic acid $(HCOOH)$ with conc. $H_2SO_4$ is a laboratory method,not a commercial one.$(B)$ Direct oxidation of carbon in limited supply of oxygen is difficult to control on a commercial scale.$(C)$ Passing steam over hot coke at high temperatures produces water gas $(CO + H_2)$,which is a standard commercial process:$C(s) + H_2O(g) \xrightarrow{1273 \ K} CO(g) + H_2(g)$$(D)$ Heating limestone $(CaCO_3)$ produces $CO_2$,not $CO$.Therefore,option $(C)$ is the correct answer.

List-$I$	List-$II$
$A$. Electron-deficient hydride	$I$. $CH_4$
$B$. Electron-precise hydride	$II$. $B_2H_6$
$C$. Electron-rich hydride	$III$. $CaH_2$
$D$. Saline hydride	$IV$. $NiH_{0.6}$
	$V$. $PH_3$

Which one of the following methods is used to prepare carbon monoxide on a commercial scale?

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Atoms in hydrogen gas have a preponderance of which isotope?

Hydrogen is produced by the reaction:

Give the chemical reaction for the preparation of producer gas.

Match the following:
List-$I$ List-$II$
$A$. Electron-deficient hydride $I$. $CH_4$
$B$. Electron-precise hydride $II$. $B_2H_6$
$C$. Electron-rich hydride $III$. $CaH_2$
$D$. Saline hydride $IV$. $NiH_{0.6}$
$V$. $PH_3$

Which of the following statements is correct?

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