chemistry: exp. Test 2023

written by gogorabei | June 19, 2023

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#1. 42)When 2-methyl propanoic reacts with sodium metal, then the product is heated with soda lime producing a compound of ……

a)2-methyl propane

a)2-methyl propane

b)Butane

b)Butane

c)2-methyl butane

c)2-methyl butane

d)Propane

d)Propane

#2. 45)When adding sodium hydroxide solution to 10 mL from aluminum sulphate solution its concentration 0.1M to obtain clear solution , The mass of sodium hydroxide needed for this reaction is …….. If you Know m Mass NaOH =40 g/mole

a) 2.40 g

a) 2.40 g

b) 320 g

b) 320 g

c) 0.320 g

c) 0.320 g

d) 0.24 g

d) 0.24 g

#3. 46)The number of moles of hydrogen gas needed to saturate 2 moles from phenyl acetylene equals ……..

a)5 moles

a)5 moles

b)10 moles

b)10 moles

c)4 moles

c)4 moles

d)6moles

d)6moles

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