(a) 2HNO3 + Ca(OH)2 \(→\) Ca(NO3)2 + 2H2O
(b) 2NaOH + H2SO4 \(→\) Na2SO4 + 2H2O
(c) NaCl + AgNO3 \(→\) AgCl + NaNO3
(d) BaCl2 + H2SO4 \(→\) BaSO4 + 2HCl
| Class | 0 – 15 | 15 – 30 | 30 – 45 | 45 – 60 | 60 – 75 | 75 – 90 |
|---|---|---|---|---|---|---|
| Frequency | 11 | 8 | 15 | 7 | 10 | 9 |
Leaves of the sensitive plant move very quickly in response to ‘touch’. How is this stimulus of touch communicated and explain how the movement takes place?