Question

select proper alternative and write the complete statements

1. From the following __________ is natural indicator
a. Phenolphthale in
b. Methyl orange
C. litmus
d. Universal indicator

2. When a bullet is fired from the gun moves little back-ward this movement of the gun is called __________
a.action
b. unbalance force
C.incatia
d. recoil

3. I joule =
a. 10⁵erg
b.10⁶erg
c.10⁷erg
d.10⁵erg
​

Answer 1

Answer:

1 .

b.methyl orange

2.

d.recoil

3.

c.c.10⁷erg