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ATQ, (11.99 × 19.98 + 14.99 × 30.01) ÷ 3.01= ? (12 × 20 + 15 × 30)/3 ~ ? ? ~ (240 + 450)/3 ? ~ 230
The height of a geo-stationary satellite from the Earth's surface is approximately :
Which of the following is a noble gas ?
During which operating conditions of an automobile is carbon monoxide content in exhaust gas maximum?
Which element gives hardness to stainless steel?
Which acid is present in grapes?
Acid reacts with metal to form salt and liberates _________ gas.
Red light is used for signals because it has –
What happens when one s orbital and one p orbital hybridize?
Which of the following elements has the maximum number of atoms in their molecular form?
...Which dating method is commonly used to determine the age of materials from prehistoric times?