Last seen: Mar 10, 2022
Correct answer: (b) 120 mm Hg and 80 mm Hg
Correct answer: (d) Thromboplastin
Correct answer: (a) Pressure difference between the post caval and atrium
Correct answer: (c) Liver
Correct answer: (d) Both 1 and 2 Explanation: Lungs and heart both resides in thoracic cavity.
Correct answer: (d) The visceral pleura is in direct contact with the chest wall.
Correct answer: (c) Total lung capacity
Correct answer: (d) All of these
Correct answer: (d) Amphibolic
Correct answer: (b) 5th thoracic vertebra Explanation: Trachea is a straight tube extending up to the mid-thoracic cavity. It divides into bronchi...
Pt is a noble metal and does not react very easily. All other elements, Zn, Ti, Fe, are quite reactive. Hence, oxygen does not react with platinum (Pt...
H2O has oxygen as the central atom. Oxygen has smaller size and higher electronegativity as compared to sulphur. Therefore, there is extensive hydroge...
The thermal stability of hydrides decreases on moving down the group. This is due to a decrease in the bond dissociation enthalpy (H-E) of hydrides on...
Sulphur mainly exists in combined form in the earth's crust primarily as sulphates [gypsum (CaSO4.2H2O), Epsom salt (MgSO4.7H2O), baryte (BaSO4)] and ...
H3PO3, on heating, undergoes disproportionation reaction to form PH3 and H3PO4. The oxidation numbers of P in H3PO3, PH3, and H3PO4 are +3, -3, and +5...
H3PO4 figure.png Since there are three OH groups present in H3PO4, its basicity is three i.e., it is a tribasic acid.
PCl5 + D2O → POCl3 + 2DCl2 POCl3 + 3D2O → D3PO4 + 3DCl Therefore, the net reaction can be written as PCl5 + 4D2O → D3PO4 + 5DCl
All the bonds that are present in PCl5 are not similar. It has three equatorial and two axial bonds. The equatorial bonds are stronger than the axial ...
White phosphorous dissolves in boiling NaOH solution (in a CO2 atmosphere) to give phosphine, PH3. P4 + 3NaOH + 3H2O → PH3 + 3NaH2PO2 ...
In PH3, P is sp3 hybridized. Three orbitals are involved in bonding with three hydrogen atoms and the fourth one contains a lone pair. As lone pair-bo...