Which of the following statement is not true for glucose?

The first ionization energy (in kJ/mol) of Na, Mg, Al and Si respectively, are :

The decreasing order of reactivity towards dehydrohalogenation (E₁) reaction of the following compounds is :

The volume (in mL) of 0.125 M AgNO₃ required to quantitatively precipitate chloride ions in 0.3 g of [Co(NH₃)₆]Cl₃ is ________.
M_{[Co(NH3)6Cl3]} = 267.46 g/mol
M_AgNO3 = 169.87 g/mol