Which of the following is an example of a molecule formed through covalent bonding?
Water (H₂ O) is a molecule formed through covalent bonds where the oxygen atom shares electrons with two hydrogen atoms. This type of bonding involves the mutual sharing of electrons between atoms, typically occurring between nonmetal atoms. It contrasts with ionic bonds, as seen in sodium chloride and magnesium oxide, where electrons are transferred from one atom to another, creating charged ions.
In a city, the number of persons travelling by bike is 22.5% the number of persons travelling by metro. The number of persons travelling on foot is 40% ...
A student multiplied a number by 8/5 instead of 5/8. What is the percentage error in the calculation?
In a two digit positive number, the digit in the unit’s place is equal to the square of the digit in ten’s place, and the difference between...
Ganesh gives 30% of her salary to his wife, 12% of the remaining amount to his children and 10% of the remaining to his parents. If has given a total am...
A train there are as many wagons as there are number of seats in each wagon. In one of the wagon carrying 25 persons is filled with 71(3/7)% of its capa...
An Urn has 120 Pink, 60 Green and 80 White Cards. 25% of Pink Cards and 50% of Green Cards are taken away, percentage of White Cards at present is
Raj saves Rs. 6000 more if he spends 55% of his income instead of 70%. Find the savings of Sanjay whose income is 25% more than that of Raj, and spends ...
If 35% of 40% of 7/5 of a number is 490, then what is 25% of 2/3 of that number?
84 is what % of 120?
If price of grains is increased by 50%, by how much percent a person has to decrease his consumption of grains so that expenditure on grain increases on...
