Question

and
C. 1:1
b.3:1
VIL A beam of light incident on a plane mirror forms a real image onrenection
incident beam is:
a. Parallel
b. Convergent
6. Divergent
viii. The least distant of distinct vision for a young adult with normal vision is about
a 25m
b.2.5 cm
C. 25cm
d 2.5m
Datf a wire of resistance R is melted and recast of half of its length, then new
resistance of the wire will be -
2/4 b.R/2
C. R
d. 2R
XrAt the time of short circuit, the current in the circuit
a. reduce substantially
b. Does not change
strcreases heavily
d. Vary continuously
5x1=5
Answer the following questions in one word or one sentence:-
2. What is the common name of the compound CaoCl2?
3. Give two examples of amphoteric oxides.
4. How many structural isomers can you draw for pentane?
5. What are fossils?
6. Which sources produce alternating current?
Answer the following questions in 20-30 words:-
7. Oil and fat containing food items are flushed with nitrogen. Why?​

Answer 1

Answer:

A =parallel

A 25m

3 amphoteric oxide

Al2o3+hcl=2alcl3+h2o

Explanation:

Kno3+hcl=2kncl3+h2o