Question

10 g of CO on burning in air gives the product which have the number of nucleons 1) 9.47 x 1023 2) 94.7 x 1023 3) 947 x 1023 4) 947 x 1024 6​

Answer 1

Answer:

Hydrogen + Oxygen → Carbon dioxide +  Water

↓                            ↓ 

10 gm                 40 g

As when CO2 is absorbed in lime water, the mass of soln increases by 27.5 gm

∴ Mass of CO2=27.5 gm

∴ Mass of H2O= (Mass of hydrogen + Mass of oxygen − mass of CO2)

=(10+40−27.5) gm

=22.5 gm

Option a

Answer 2

NO I DIDN'T GET ANSWER

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