(a) Dehydrohalogenation of ethylene dibromide: [ C_2H_4Br_2 + 2KOH (textalc.) xrightarrowDelta C_2H_2 + 2KBr + 2H_2O ] The product is Ethyne (Acetylene).
(b) Reaction of excess ammonia with chlorine: [ 8NH_3 + 3Cl_2 6NH_4Cl + N_2 ] The products are Ammonium chloride (white fumes) and Nitrogen gas. (c) Dehydration of Cane Sugar: [ C_12H_22O_11 xrightarrowtextconc. H_2SO_4 12C + 11H_2O ] The concentrated sulphuric acid removes water from the sugar, leaving behind a black spongy mass of Sugar Charcoal.
Which of the following element pairs will form an ionic bond? 
A hydrocarbon X undergoes the reaction under suitable conditions as shown below. 
(a) Give the IUPAC name for the following organic compounds: 
नीचे दिए गए चित्र को ध्यान से देखिए और चित्र को आधार बनाकर कोई लेख, घटना अथवा कहानी लिखिए जिसका सीधा व स्पष्ट संबंध चित्र से होना चाहिए। 