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Question

(D) In $CO_2$,the total number of electrons is $6 + 8 + 8 = 22$.In the cyanamide ion $(CN_2^{2-})$,the total number of electrons is $6 + 7 + 7 + 2 = 2

Vedclass · Accepted Answer

All of the above.

Vedclass · Answer

(D) In $CO_2$,the total number of electrons is $6 + 8 + 8 = 22$.In the cyanamide ion $(CN_2^{2-})$,the total number of electrons is $6 + 7 + 7 + 2 = 22$. Since both have $22$ electrons,they are isoelectronic. Both $CO_2$ and $(CN_2^{2-})$ exhibit a linear structure. Thus,statement $(a)$ is correct.$Mg_2C_3$ reacts with water to produce propyne: $Mg_2C_3 + 4H_2O 	o 2Mg(OH)_2 + CH_3C \equiv CH$. Thus,statement $(b)$ is correct.The crystal structure of $CaC_2$ is of the $NaCl$ type (distorted rock salt structure). Thus,statement $(c)$ is correct.Therefore,all the given statements are correct.

List-$I$	List-$II$
$A$. Chlorophyll	$I$. $Na_2CO_3$
$B$. Soda ash	$II$. $CaSO_4$
$C$. Dentistry,Ornamental work	$III$. $Mg^{2+}$
$D$. Used in white washing	$IV$. $Ca(OH)_2$

Select the correct statement$(s)$.

Similar Questions

Which of the following statements is not correct?

Match List-$I$ with List-$II$.

List-$I$ List-$II$

$A$. Chlorophyll $I$. $Na_2CO_3$

$B$. Soda ash $II$. $CaSO_4$

$C$. Dentistry,Ornamental work $III$. $Mg^{2+}$

$D$. Used in white washing $IV$. $Ca(OH)_2$

Choose the correct answer from the options given below:

Which of the following are ionic carbides?

Which of the following alloys contains a non-metal?

$A$ hydrated solid $X$ on heating initially gives a monohydrated compound $Y$. $Y$ upon heating above $373 \ K$ leads to an anhydrous white powder $Z$. $X$ and $Z$,respectively,are

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