ncert science Flashcards by PRANAV SHRIVASTAVA

which compund is use in cement

calcium oxide

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anode produce

oxygen

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cathode prodice

hydrogen

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silver chl turn grey

in sunlight and form silver metal

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why surface of copper powder coated with black

oxygen is added

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if hydrogen pass through heated material

then blac colour turn brown

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lichen belong to

thallophytes

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acid and base give which ion after dissolvingin water

H+ and OH-

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which su b use in photography to remove agr

sodium thisolphate

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wgich is use in fire extenguisher

baking soda

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process of dissolving an acid or base in water is

exothermic

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acid plus base

salt plus water

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tooth decay start when our ph become less than

5.5

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nature of tooth paste is

basic

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enamel made up of

calcium sulphate

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most ductile metal

gold

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metal plus oxygen

metal oxide

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metal plus water

metal oxide and hydrogen

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metal plus acid

slat and hydrogen

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acid rain ph

if its ph below 5.6

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those base soluble in wtaer are called

alkalene

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phenepthalon in base

pink

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aqua regia

3 mole of hcl and 1 mole of hno3

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foolish gold

pyrite

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titanium ore

ilemenite

casertile

tin ore

caranalite is aore of

potassium

rocksalt borax is ore of

sodium

Lithium, along with sodium and potassium, is an alkali metal that is stored in oil (or kerosene) primarily due to its

reactivity

Carbonate and sulfide ores are commonly converted into

oxides

galvanization

involves applying a coating of zinc

single bond

saturated fat

polyatomic ion

cluster of atom that act as ion are called

jj thomson got nobel prize for

discovery of electrons

in ruthrford mose he find

alpha rays

neils bohr got atomic prize for

structure of Atom

electron distribution by

neils bohr

3 and 5 valency

phospohrous

rutherford alpha particle scattering experminet led to

discovery of atomic nucleus

protein factory

ribosome

absorption of water by plant root is

example of osmosis

nucleus has single layer or double layer covering

doub;e

plastids found only in

plants

sucida l bag

lysosome

galileo enrolled for

medical degree

the lliteel ebalance book

galelio

sound waves are longitudnal or transverse waves

longitudnal

peptic ulcer caused by

helicobactwer pylori

acne cause

staphylocii

india japan joint moon

lupex

chandrayan 3

surfaced on southern pole of moon

earthcare mission

eu and jaxaa for aerosol

calcium oxide react with vigorously with water to produce

slake lime(calcium hydroxie) and releasing large amount of heat

which is use for washing wall

slaked lime

slake lime (calcium hydroxide) produce what on board

calcium carbonate

lime stone heat

quick lime

rod in electrolysis

graphite

anode produce

oxygen

reaction of zinc granule with sulphuric acid release

hydrogen

lime water and co2

white precipitite

acid on venus

sulphuric acid

mouth enamel is made up of

calcium hydroxapatite

nettle contain

methonic acid

treatment of nettle bite

rubbing dock plant

acid +base

salt and water

if magnesium burn in the air then what will happen

dazzling white flame

metal +water

metal oxide+hydrogen

metal oxide + water

metal hydroxide

metal +acid

salt and hydrogen

nobel gas in which group

does nobel gas has high valency

yes

metal extraction from electrolysis

kaun nache cham mai all

extraction of metal from remove carbon

zara fir position pe

stainless steel

nickel and chromium

highest melting and boiling point of carbon compound

acetic acid

lowest melting and boiling point of carbon

methane

nobel gas

: Noble gases are termed "inert" because they rarely participate in chemical reactions. Their filled outer electron shells make them stable and unlikely to gain or lose electrons1

graphite

3 layered covalent bond

catenation

carbon unique ability to form bond with other atoms of atoms

valency of carbon

ethane

c2h6

mathane

ch4

propane

vc3h8

ethanoic acid known as

acetic acid

carboxylic acid

acetic acid

how ester form

by reaction of acid and alcohaol ethanoic acid and alcohal

ethanoic acid reaction with hydrocarbon

to giverise to salt co2 and water

hydropholic soap react

react with water

does tail of soap is soluble

not

detergent are sodium saltof

sulphuric ac8d

which is remain effective in hard water

calcium and mg

butanone is

ketone

ketone feature

carbonyl

how many covalent bond ethane has