CaCO3(s)→Δ800−10000cCaO→high 'T'cokeCaC2+CO↑CaC2→N2:10000cP+graphiteP→H2SO4(dil)QP→3H2O (air)RP→ΔH2O ExcessS (melamine) How many of the following statements is/are CORRECT

CaC2+N2→Δ10000cCaCN2(P)+graphite Nitrolium CaCN2(P)+H2SO4(dil) →H2CN2(Q)+CaSO4 [H2N−C≡N] CaCN2(P)+3H2O→Air(NH2)2CO(R)+Ca(OH)2 (Urea) 3CaCN2(P)+6H2O→C3N3H6(S)+3Ca(OH)2

CaCO3(s)→Δ800−10000cCaO→high 'T'cokeCaC2+CO↑CaC2→N2:10000cP+graphiteP→H2SO4(dil)QP→3H2O (air)RP→ΔH2O ExcessS (melamine) How many of the following statements is/are CORRECT

CaC2+N2→Δ10000cCaCN2(P)+graphite Nitrolium CaCN2(P)+H2SO4(dil) →H2CN2(Q)+CaSO4 [H2N−C≡N] CaCN2(P)+3H2O→Air(NH2)2CO(R)+Ca(OH)2 (Urea) 3CaCN2(P)+6H2O→C3N3H6(S)+3Ca(OH)2

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$C a C O_{3 (s)} \to_{Δ}^{800 - 1000^{0} c} C a O \to_{h i g h' T'}^{c o k e} C a C_{2} + C O ↑$
$C a C_{2} \overset{N_{2} : 1000^{0} c}{\to} P + g r a p h i t e$
$P \overset{H_{2} S O_{4} (d i l)}{\to} Q$
$P \overset{3 H_{2} O (a i r)}{\to} R$
$P \to_{Δ}^{H_{2} O (E x c e s s)} S$ (melamine)
How many of the following statements is/are CORRECT

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‘Q’ is cyanamide, of the formula $H_{2} C N_{2}$

‘R’ is $C_{3} N_{6} H_{6}$ and contains $3 π$ bonds and 6 lone pairs.

‘P’+ graphite is called, nitrolim and is used as a nitrogenous fertilizer

‘S’ forms, resin (polymer) with ethanol

answer is A, B.

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Detailed Solution

$C a C_{2} + N_{2} \to_{Δ}^{1000^{0} c} \underset{(P)}{C a C N_{2}} + g r a p h i t e N i t r o l i u m \underset{(P)}{C a C N_{2}} + H_{2} S O_{4 (d i l)} \to \underset{(Q)}{H_{2} C N_{2}} + C a S O_{4} [H_{2} N - C \equiv N] \underset{(P)}{C a C N_{2}} + 3 H_{2} O \overset{A i r}{\to} \underset{(R)}{{(N H_{2})}_{2} C O} + C a {(O H)}_{2} (U r e a) 3 \underset{(P)}{C a C N_{2}} + 6 H_{2} O \to \underset{(S)}{C_{3} N_{3} H_{6}} + 3 C a {(O H)}_{2}$