Can anyone teach me?
what is《 auynhakhsu 》?
Answers
Answer:
Chapter - 3 CO-ORDINATE GEOMETRY 1. Name the mathematician who developed Co-ordinate geometry. 2. How many points are required to locate a line segment? 3. The axis divides the plane into four parts. What are these four parts called? 4. What are the co-ordinates of origin? 5. What is the point of intersection of axis called? 6. What is the distance of a point form y -axis called? 7. What is the distance of a point from x-axis called? 8. What is the name of the horizontal and vertical lines drawn to determine the position of any point to the Cartesian plane? 9. What is the equation of x-axis? 10. Line y = 0 represents which axis? Class 9
Answer:
Correct option is
B
2
M
Oxidation state of N in NH
2
OH,
x+3−2=0
x=−1
Therefore, the charge on nitrogen is −1
Oxidation state of N in N
2
O
2x−2=0
x=+1
Since oxidation state of N changes from −1 to +1, the equivalent weight of NH
2
OH is
2
M
.