$2\mathrm{X}\left(\mathrm{g}\right)+\mathrm{Y}\left(\mathrm{g}\right)+3\mathrm{Z}\left(\mathrm{g}\right)⟶$Product

The rate equation of above reaction is given by Rate $=\mathrm{K}\left[\mathrm{X}{]}^1\right[\mathrm{Y}{]}^0[\mathrm{Z}{]}^2$

Choose the correct statement(s),

Rate of reaction decreases by reducing the concentration of Y to half of the original value

On doubling the concentration of X Y and Z rate of reaction becomes 8 times 

If 75% of X undergoes reaction in 20 sec,50% of X will react in 10sec if$\left[\mathrm{Z}\right]\gg \left[\mathrm{X}\right]$

The half life of Z increases by increasing its concentration if $\left[\mathrm{X}\right] » [\mathrm{ZI}$