Science, asked by Janadeen, 1 year ago

Most asked questions in science in class 10

Answers

Answered by PriyankaJoshi1

1. why is H2 produced double than o2 at cathode ?
2. name part of eye where image is formed
3. what are fossil fuels what they tell about evolutionary relationship
4if electric fuse has rating 2A .. but 15A current flows what do u expect
5. distinguish between Mendel and Modern Periodic Table
6.If a person can see only upto 3 m which lens must be used to see 12 m
7. how are magnetic lines represented inside and outside a bar magnet
8.- xplain implantation and placenta
9. what are non conventional sources of energy
10 what is coliform how does it pollute Ganga

PriyankaJoshi1: you are correct it's just fossil

Janadeen: Ok

Janadeen: How do we solve 6th q ?

PriyankaJoshi1: ok if he wants to see 12 m which is more than the distance of 3m concave lens will be used

PriyankaJoshi1: as the person is suffering myopia

Janadeen: Ok thank you so much

Janadeen: Is this answer enough or should we solve as steps

PriyankaJoshi1: ok 1/f = 1/v - 1/u ....... where v = -- 3 and u = -- 12 m put the values and f comes -4m ..... thus power = - 2.5 D

Janadeen: Thank you so . Much

PriyankaJoshi1: it s ok

Answered by prajakta5

what change in colour is observed when white silver chloride is exposed to sunlight? state the type of chemical reaction in this change. A solution of substance X is used for white washing a name the substance X and write it's formula.b write the reaction of substance X named in above with water. A zinc plated was put into a solution of copper sulphate kept in a glass container it was found that blue colour of solution gets fader and fader with the passes of time. after a few days when zinc plated was taken out of the solution a no of holes were observed on it.a state the reason for changes observed on the zinc plate b write the chemical reaction for the reaction involved.

Janadeen: Thank you so much

prajakta5: my pleasure

Previous Question

Next Question