Q8- When observed through amagnifying glass bread mouldplants firstfirst look like white Cotton mass and later on turns black. Explain. please answer this question ​

Answer:

A. Se

Explanation:

Answer:

It will be Answer A. ce. This is the right answer

Answer:

pi orbital

Explanation:

bec there is weak pi bond that's why comparative sigma bond

Explanation:

• [tex]B2+[/tex]  has 10 electrons  

• Its electronic configuration is [tex]sigma (1s), 2 sigma*(1s) ,2 sigma(2s), 2 sigma* (2s) ,2 pi (2p) x1, Pi 2p y1[/tex]

• Here unpaired electrons are found and due to the presence of unpaired electrons, the nature is paramagnetic.

• Here the highest occupied molecular orbital is of [tex]\pi[/tex] orbital.
• pi bonds are covalent chemical bonds.
• They can form a double and triple bonds but do not form single bonds.
• They involve complete overlapping of two lobes of atomic orbital with the other.

Answer:

little messy but hope it helps

ans b

The second equation of motion can be defined as,

s = ut + (1/2) at²

where s is distance, t is time, u is initial velocity and a is the acceleration.

The velocity of projectile, V= (2î + 3j) m/s

The equation of trajectory.

Given, V= (2i + 3j) m/s

The velocity in the i direction is 2i m/s.

The distance traveled in the i direction, that is in the x-axis, acceleration is zero in the x-axis,

s = ut + (1/2) at²

x = ut + (1/2) (0)t²

x = 2t m/s

The velocity in the j direction is 3j m/s.

The distance traveled in the j direction, that is in the y-axis, acceleration is 10m/s² in the downward y-axis,

s = ut + (1/2) at²

y = (3)t - (1/2) (10)t²

y = 3t - 5t²

So, writing x in terms of y,

y = (3/2)x - (5/4)x²

4y = 6x - 5x²

Hence, the equation of the trajectory is 4y = 6x - 5x²  and the correct option is (b) 4y = 6x - 5x².

#SPJ2

Answer:

Hence, this electrons goes to antibonding π molecular orbital.

During the change of N2 to N2-, the added electron goes to (π*2px) molecular orbital.

In N2- we have 15 electrons and there are 10 bonding electrons and 5 anti-bonding electrons. In N2- we have one unpaired electron so it also shows some magnetic moment.

The bond order of N2- is 2.5 while the bond order for N2 is 3. As bond order is inversely proportional to bond strength the bonds formed by N2- will be weaker as compared to N2. the bond length of N2- will be more.