Give reasons :Mountaineers carry oxygen cylinders with them.

Give reasons for the following: Mountaineers carry oxygen cylinders with them.

Why do mountaineers carry oxygen cylinder along with them ?

Give reason : The ratio of hydrogen and oxygen formed at the cathode and anode are 2 : 1 by volume.

All arteries carry oxygenated blood except

Assertion :- While ascending up a mountain , one gets less oxygen resulting in hypoxia. Reason :- Percentage of oxygen decreases in the air at high altitudes.

Give reasons for the following: The percentage of oxygen, in air dissolved in water, is higher than the percentage of oxygen in ordinary air.

The " mountain sickness" in persons climbing to high altitudes with any aid of oxygen cylinders is due to

Assertion : Mountain roads rarely go straight up the slope. Reason : Slope of mountains are large therefore more chances of vehicle to slip from roads.

A cylinder of compressed gas contains nitrogen and oxygen in the molar ratio of 3:1 . If the cylinder contains 2.5 xx 10^(4)g of oxygen, what is the total mass of the gas in the mixture ?

Give reasons for the following: The bond formed between the oxygen atom in water and the hydrogen ion is a coordinate bond,