A plane leaves Delhi at 1200 hours and reaches Chandigarh al
1310 hours. It starts again from Chandigarh at 1340 hours and
reaches Jammu at 1525 hours. Find the duration of flight from:
(a) Delhi to Chandigarh (b) Chandigarh to Jammu
Monday at 1850 hours and reaches
Answers
Answer:
2222222222222222222222222222 19. Below questions are based on the Table. Study this table related to melting
points and boiling points of different substances and answer the following
questions. (a) Name the substances from Table A that we can find in liquid state
at room temperature (25 °C) (b) We are heating a bowl of water and a bowl of
ethanol separately. We start from the same temperature and heat them on a
similar kind of flame. Which bowl will get empty first? (c) What does the melting
point of a solid indicate? (d) Glycerol is heated from 0 °C to 50 °C. When the
temperature reaches 17.8 °C, the temperature remains constant for a while and
only after some time, it starts to increase again. Why?
Boiling point (°C)
-57
-42
Component name
Carbon dioxide
Propane
Ethanol
Water
Glycerol
Melting point (°C)
-78
-188
-114
0
78.4
100
290
17.89. Below questions are based on the Table. Study this table related to melting
points and boiling points of different substances and answer the following
questions. (a) Name the substances from Table A that we can find in liquid state
at room temperature (25 °C) (b) We are heating a bowl of water and a bowl of
ethanol separately. We start from the same temperature and heat them on a
similar kind of flame. Which bowl will get empty first? (c) What does the melting
point of a solid indicate? (d) Glycerol is heated from 0 °C to 50 °C. When the
temperature reaches 17.8 °C, the temperature remains constant for a while and
only after some time, it starts to increase again. Why?
Boiling point (°C)
-57
-42
Component name
Carbon dioxide
Propane
Ethanol
Water
Glycerol
Melting point (°C)
-78
-188
-114
0
78.4
100
290
17.8The following data represents the distribution of electrons, protons
and neutrons in atoms of four elements A,B,C,D. (3)
Solve the following questions:
i) Write the electronic distribution of atoms of element A and D
ii) Element A is an inert gas, why?
iii) What is the valency of element C?
29. Describe the role played by the lysosomes. Why these are termed as suicidal
bags? How do they perform their function?
⚠️SPAM ANSWERS WILL BE REPORTED ⚠️0.1 Which of the following pair of substances contain element and compound within a
parr?
LA) 0 CH
(B) H.O.
(ON.CO
(D) Na.Co
(a) A CD
(b) B only
(o Cand
D
(d, Ali of these
Select from following, which is not mechanism of size reduction *
Cutting
Compression
Impact
None
If A=40, n=22. e=_______Select
the correct option
1) 27
2)28
3)19
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