6. Which sources produce alternating current?
Answer the following questions in 20-30 words:-
7. Oil and fat containing food items are flushed with nitroge
*. At the time of short circuit, the current in the circuit
a reduce substantially
b. Does not change
Increases heavily
d. Vary continuously
answer the following questions in one word or ane sentence:-
What is the common name of the compound CaOCLz?
Give two examples of amphoteric oxides.
How many structural isomers can you draw for pentane?
5. What are fossils?
)
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Answer:
(a) Heavy isotope of hydrogen
(b) Heavy isotope of oxygen
(c) Mole number of hydrogen atoms
(d) Mole number of oxygen atoms
Q3. Glass is soluble in
(a) H₂SO₄
(b) HCIO₄
(c) HNO₃
(d) HF
Q4. Who was the father of Biology?
(a) Aristotle
(b) Antoine Lavoisier
(c) Eratosthenes
(d) none of these
Explanation:
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