কাজ
রক্তশূন্যতা, হাইপোক্সেমিয়া, হাইপোক্সিয়া, ম্যালিগন্যান্সি, মাইগ্রেন, পলিসাইথেমিয়া, পালমোনারি হাইপারটেনশন (PH), শ্বাসযন্ত্রের ব্যাধি, নিদ্রাহীনতা চিকিৎসায় নির্দেশিত হয়।
0 Answers
Hydrogen being a highly inflammable gas and oxygen being a supporter of combustion, Why?
The properties of compound are different from its constituent elements. Water which is a compound of oxygen and hydrogen has property to extinguish fire though its constituent elements do not...
1 Answers 1 views
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be
(a) The element is likely to be calcium.
1 Answers 1 views
What type of oxides is formed when non-metals combine with oxygen?
Non-metals combine with oxygen to form acidic oxides. For example:S(s)+O2(g) → SO2 (g)
1 Answers 1 views
A mixture of oxygen and ethyne is burnt for welding. Can you tell why a mixture of ethyne and air is not used?
When ethyne is burnt in air, it gives a sooty flame. This is due to incomplete combustion caused by limited supply of air. However, if ethyne is burnt with oxygen,...
1 Answers 1 views
Oxygen liberated during photosynthesis comes from
(a) water , is the correct option
1 Answers 1 views
Lack of oxygen in muscles often leads to cramps among cricketers. This results due to
(d) conversion of pyruvate to lactic acid
1 Answers 1 views
During deficiency of oxygen in tissues of human beings, pyruvic acid is converted into lactic acid in the
(a) cytoplasm
1 Answers 1 views
The two forms of oxygen found in the atmosphere are (a) water and ozone (b) water and oxygen (c) ozone and oxygen (d) water and carbon-dioxide
(c) ozone and oxygen
1 Answers 1 views
Hydrogen and oxygen combine in the ratio of 1 : 8 by mass to form water. What mass of oxygen
It is given that the ratio of hydrogen and oxygen by mass to form water is 1:8. Then, the mass of oxygen gas required to react completely with 1g of...
1 Answers 1 views
A sample of vitamic C is known to contain 2.58 ×1024 oxygen atoms. How many moles of oxygen atoms are present in the sample?
1 mole of oxygen atoms = 6.023×1023 atoms ∴Number of moles of oxygen atoms = 2.58 ×1024 / 6.022×1023 ...
1 Answers 1 views