71. How much amount of energy is required to break the Triple bond in nitrogen molecule?
225 Kcal/mole or 945.4 KJ/mole
72. How many sigma and pi bonds are present in nitrogen formula?
Each nitrogen molecule contain one sigma and 2 Pi bonds
73. What are the important sources of Phosphorus?
Sources of Phosphorous are Phosphate rocks
• Flourapatite {2Ca3 (PO4)2 CaF2}
• Phosphorite {Ca3 (PO4)2}
74. Name two elements, which are Non-metallic in nature in 5th A group?
Nitrogen and Phosphorous
75. What is Allotropy?
Nitric acid
Negative oxidation states of nitrogen are because.
Higher Electro negativity
76. What is the molecular formula, Structure, and bond angle of Phosphorous?
P4- Phosphorous molecule (Tetra atomic)
Structure- Tetrahedral
Bond angle – (60 degrees)
77. What is the Anhydride of N2O5?
Nitric acid
78. Why nitrogen cannot form penta halides?
Because of the absence of d-orbital in its valency shells
Ortho Phosphoric acid is. Give oxidation no of phosphorous in it.
H3PO4-ortho phosphoric acid
Oxidation state of phosphorous is +5
79. What is the Super phosphate of lime?
Ca (H2Po4)2 caSO4. 2H2O. Super phosphate of lime is also called as Calcium super Phosphate
Sixth group elements are called as.
Chalcogens (ore forming elements)
80. What is the other name of sulphur?
Brimstone
Sulphur molecule exists as.
S8 molecule (octa atomic)
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225 Kcal/mole or 945.4 KJ/mole
72. How many sigma and pi bonds are present in nitrogen formula?
Each nitrogen molecule contain one sigma and 2 Pi bonds
73. What are the important sources of Phosphorus?
Sources of Phosphorous are Phosphate rocks
• Flourapatite {2Ca3 (PO4)2 CaF2}
• Phosphorite {Ca3 (PO4)2}
74. Name two elements, which are Non-metallic in nature in 5th A group?
Nitrogen and Phosphorous
75. What is Allotropy?
Nitric acid
Negative oxidation states of nitrogen are because.
Higher Electro negativity
76. What is the molecular formula, Structure, and bond angle of Phosphorous?
P4- Phosphorous molecule (Tetra atomic)
Structure- Tetrahedral
Bond angle – (60 degrees)
77. What is the Anhydride of N2O5?
Nitric acid
78. Why nitrogen cannot form penta halides?
Because of the absence of d-orbital in its valency shells
Ortho Phosphoric acid is. Give oxidation no of phosphorous in it.
H3PO4-ortho phosphoric acid
Oxidation state of phosphorous is +5
79. What is the Super phosphate of lime?
Ca (H2Po4)2 caSO4. 2H2O. Super phosphate of lime is also called as Calcium super Phosphate
Sixth group elements are called as.
Chalcogens (ore forming elements)
80. What is the other name of sulphur?
Brimstone
Sulphur molecule exists as.
S8 molecule (octa atomic)
More Questions & Answers:-
Page1 Page2 Page3 Page4 Page5 Page6 Page7 Page8 Page9
Page10 Page11
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ReplyDeleteI was cured of HPV with the use of pure natural roots and herbs from a herbal professional maker called dr Moses Buba, a man of trust and always reliable to his word. I actually thank you cause at first I doubt what others do, but you make me believe that good people still live . You can reach via email buba.herbalmiraclemedicine@gmail.com or WhatsApp him +234906059305 for more information you can reach me also on my cell phone with text or WhatsApp and even drop a call on 0(501)9914802 . am grateful to share his work so I will share more about Dr Moses buba