Year: 2025
Topic: Some Basic Concepts of Chemistry
Time :
1.
Among the following, choose the ones with equal number of atoms.
A. 212 g of \(Na_2 CO_3 \left(s\right)\) [molar mass = 106 g]
B. 248 g of\( Na_2 O \left(s\right)\) [molar mass = 62 g]
C. 240 g of \(NaOH \left(s\right)\) [molar mass = 40 g]
D. 12 g of \(H_2 \left(g\right)\) [molar mass = 2 g]
E. 220 g of \(CO_2 \left(g \right)\) [molar mass = 44 g]
Choose the correct answer from the options given below :
A. 212 g of \(Na_2 CO_3 \left(s\right)\) [molar mass = 106 g]
B. 248 g of\( Na_2 O \left(s\right)\) [molar mass = 62 g]
C. 240 g of \(NaOH \left(s\right)\) [molar mass = 40 g]
D. 12 g of \(H_2 \left(g\right)\) [molar mass = 2 g]
E. 220 g of \(CO_2 \left(g \right)\) [molar mass = 44 g]
Choose the correct answer from the options given below :