A village having a population of 8000 requires 200 litres of water per head per day. It has a tank measuring 40 m `xx` 30 m `xx` 12 m. The water of this tank will last for
Daily need of water = 8000× 200 Amount of water in the tank = 40m× 30 m× 12 m. Number of days = Amount of water in the tank/daily need of water = (40× 30× 12× 1000)/(8000× 200) (1litre = 1000m³) Number of days = 9 days
The Element/Ion which is essential in small quantities for the development of healthy teeth but causes mottling of the teeth if consumed in higher quant...
Which of the following fatty acids does NOT form soap?
What element is used to coat galvanized iron?
Which is the third lightest halogen?
The green colour of the leaves is due to-
Which planet is known as the "Red Planet"?
Potassium Permanganate is used for purifying drinking water, because it –
Which sodium compound is the most popular additive in sauces, salad dressings, and beverages for its preservative action?
The IUPAC name of the compound CH₃ -CH₂ -CH₃ is-
Which of the following elements is not a component of stainless steel?
