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Kindly give guidance for class 11th student to get admission in Pune college.

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The standard enthalpy of combustion at 25°C of hydrogen, cyclohexene (C6H10) and cyclohexane (C6H12) are –241, –3800 and –3920 kJ mol–1 respectively. Calculate the standard enthalpy of hydrogenation of cyclohexene.
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alok kumar singh

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HCP crystal is made of A ions and B ions are arranged in 2/3rd of octahedral voids. The simplest formula of compound is :-
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Enthalpy of neutralisation of CH3COOH by NaOH is – 50.6 kJ/mol and the heat of neutralisation of a strong acid with NaOH is – 55.9 kJ/mol. The value of ΔH for the ionisation of CH3COOH is :
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alok kumar singh

CH3COOH + NaOH → CH3COONa + H2O

ΔH = –50.6 kJ/mol

NaOH + SA [HCl] → NaCl + H2O

ΔH = –55.9 kJ/mol

the value of ΔH for ionisation of CH3COOH

⇒ ΔH = +55.9 – 50.6

5.3 kJ/mol

Kindly Consider following table–

(i)    The correct match is–

 

 

  

 
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Fact.

Which of the following is a carbonate ore ?
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