how to calculate amount of moles used
Reaction One
Ketone ---> dichloroalkane(geminal) ------> chloroalkene ------> alkyne
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Reaction 2 is double dehydrohalogenation to convert vicinal dihalide to alkyne
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Reaction three - First convert vicinal dihalide to alkyne by double dehydrohalogenation using two moles of NaNH2 ---->Deprotonation (Removal of acidic H from sp carbon) -------> SN2 Nucleophilic substitution reactions CH3CH2I
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Now you can add them to get total moles
Thankyou ma'am , understood now