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Carbon dioxide is evolved when ethanoic acid is added to sodium carbonate. The gas is invisible to the eye but can be detected by the pop sound made by the gas in a bubble solution. Hence, option B is correct.
1365 ÷ 15 + (? ÷ 5) = 62 × 3.5
?% of 120 × 3√343 = 42 × 20
3 √(432 – 13 + 9 × 32) = ?
6 × 5.5 + 4.5 × 20 - 102 = ?
Simplify the following expression:
What will come in the place of question mark (?) in the given expression?
?² = 28% of 35% of 4500
2197 1/3 + 30% of 1800 = ?× 343 1/3
Find the simplified value of the following expression:
72 + 132 X 4 - {232 + 172 - 402
What will come in place of (?) in the given expression.
{(60% of 250) + √144} ÷ (3² - 4) = ?
