Question

Newton's ______ law of motion is used in rocket launching

first

third

second

gravitational
Required
2. The number of images..........., when the measure of the angle between the two mirror is increased

decreases

remain the same

increases

none of these
Required
3. Color of the universal indicator is.........

red

blue

green

greenish yellow
Required
4. Which of the following solutions has pH less than 7 ?

pure water

NaOH

HCl

none of these
Required
5. Deceleration is ....... acceleration

negative

positive

zero

none of these
Required
6. Momentum= .................

velocity×mass

speed×mass

none of these
Required
7. ........... images are obtained when the plane mirrors are kept parallel to each other

2

4

1

infinite
Required
8. Some aqueous solutions have the following PH values Which is the acidic solution ?

pH =7

pH=10

pH= 5

pH=14
Required
9. ......... are sour to taste

Acids

Bases

Salts

none of these
Required
10. Which of the following solutions has pH =7

pure water

NaOH

HCl

lemon juice
Required
11. Which of the following plant shows parallel venation

banana

mango

sweet pea

banyan
Required
12. In food chain first trophic level is occupied by.............

carnivorous

herbivores

decomposers

producers
Required
13. Food web consist of ............ food chains

single

more than two

three

zero
Required
14. In food chain frog is .............. consumer

primary

secondary

tertiary

producer
Required
15. Spirogyra is example of.............

Thallophyta

Bryophyta

Pteridophyta

none of these
Required
16. Conversation of nitrogen compounds into gaseous nitrogen is called................

nitrification

denitrification

ammonification

none of these
Required
17. Hibiscus belongs to division.............

gymnosperms

angiosperms

bryophyta

none of these
Required
18. Which of the following flower is odourous

tuberose

hibiscus
Required
19. The type of root in the plant catharanthus is ,..................

tuber

tap root

fibrous

none of these
Required
20. Producers are ................ organisms

omnivorous

heterotrophic

autotrophic

carnivorous
Required


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Answer 1

Answer:

third .....

autotrophic

......................

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