a) An organic compound with molecular formula C2H4O2 produces brisk efferescene on addition of sodium carbonate/bicarbonate. Answer the following: i) Write the name of the organic compound. ii) Write the chemical equation for the above reaction. iii) Name the gas evolved.
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Answer:
i) Name of the organic compound is Ethanoic Acid.
ii)2 CH3COOH +Na2CO3-->2 CH3COONa+H2O+CO2
iii) Name of the gas is CO2 or carbon dioxide.
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Explanation:
In 5 Litre 57.5 km is covered
so in 1 Litre it will cover 57.5 km /5 L
= 11.5 Km/L
so in 11 litres it will cover 11.5 × 11 = 126.5 kmगुणधर्म
समांतरभुज चौकोनाचा कर्ण चौकोनास दिन एकरूप त्रिकोणांमध्ये विभागतो. (▲ ADB हा ▲ ABC ला एकरूप आहे).
समांतरभुज चौकोनाचे कर्ण एकमेकांना दुभागतात.
विरुद्ध बाजू एकरूप असतात (AB = DC).
विरुद्ध कोन एकरूप असतात (∠ADC= ∠ABC).
सलग कोन एकमेकांचे पूरक कोन असतात (∠DAB + ∠ADC = 180°).
एक कोन काटकोन असेल तर सर्व कोन काटकोन असतात.
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