Question

Solution

Correct option is

NO

Mass of 22.4 L of gas at STP = 30 g

i.e., molecular mass of the gas = 30. Hence, gas is NO.

SIMILAR QUESTIONS

Q1

One mole of calcium phosphide on reaction with excess of water gives

Q2

Number of g of oxygen in 32.2 g Na2SO4. 10H2O is

Q3

The percentage of Se in peroxidase anhydrous enzyme is 0.5% by weight (atomic weight = 78.4). Then minimum molecular weight of peroxidaseanhydrous enzyme is

Q4

The percentage of nitrogen in urea is about

Q5

How much of NaOH is required to neutralize 1500 cm3 of 0.1 N HCl? (Na = 23)

Q6

10 dm3 of N2 gas and 10 dm3 of gas X at the same temperature contain the same number of molecules. The gas X is

Q7

The volume of water to be added to 100 cm3 of 0.5 N H2SO4 to get decinormal concentration is

Q8

250mL of a sodium carbonate solution contains 2.65 grams of Na2CO3. If 10mL of this solution is diluted to one litre, what is the concentration of the resultant solution?

(mol. wt. of Na2CO3= 106)

Q9

An aqueous solution of 6.3 g of oxalic acid dihydrate is made up to 250mL. The volume of 0.1 N NaOH required to completely neutralize 10mL of this solution is

Q10

How many moles of electrons weight one kilogram?