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CBSE BOARD XII
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Chemistry
Chemistry
Predict the possible adverse effect on the environment when this non-metal Oxide , NO2 react with water and oxygen...
08.05.2022 21:01
3
Chemistry
the half live of a first order reaction is 32s. what was the original concentration if, after 2.o minutes the reactanct concentration is 0.062m...
08.05.2022 17:50
2
Chemistry
Predict the possible adverse effect on the environment when this non-metal Oxide , NO2 react with water and oxygen...
08.05.2022 15:50
3
Chemistry
. Find out the mass of photon with wavelength 3.6A....
08.05.2022 15:50
3
Chemistry
Which Type of the Bonding Occur in (PNCl2)3.a. dπ-Pyb. Pπ-Pπc. dπ-Pπd. dy-Pπ...
08.05.2022 09:01
3
Chemistry
Describe the atomic structure of a nucleus...
08.05.2022 02:50
2
Chemistry
Arrange the following compounds in the increasing order of electrophilicity of the carbon atom of the carbonyl group. CH3CH2-CHO, CH3CH2-CO-CH3, HCHO, CH3-CO-CH3please hlp me wit...
08.05.2022 02:01
2
Chemistry
How to find the valency of polyatomic ions....
08.05.2022 02:01
3
Chemistry
When nitrogen monoxide is released into the atmosphere, nitrogen dioxide, NO2,is formed. suggest an explanation why this happens...
07.05.2022 20:50
1
Chemistry
3. What happens when a solid is heated?...
07.05.2022 10:05
2
Chemistry
11 std chemistry plzz help goa board only if u know answer...
07.05.2022 02:01
3
Chemistry
You are given the following chemical equation: Mg(s)+ CuO(s) MgO(s ) + Cu(s) this equation represents: a) composition reaction as well as a displacement reactionb) combination r...
07.05.2022 02:01
2
Chemistry
Mandeleves periodic table explanation class 10...
07.05.2022 02:01
2
Chemistry
Oxidation number of central metal atom 1) [Ni(CO) 4]2) [Co(NH3)6 ] 3+explain clearly...
06.05.2022 20:01
3
Chemistry
A well-insulated turbine operating at steady state is sketched in Fig. Steam enters at 3 MPa, 400°C, with a volumetric flow rate of 85 m3 /min. Some steam is extracted from the tur...
06.05.2022 06:10
3
Chemistry
क्रियाकलाप 1.5 में एक परखनली में एकत्रित गैस की मात्रा दूसरी से दुगनी क्यों है? उस गैस का नाम बताइए।...
06.05.2022 05:50
2
Chemistry
34. Calcium carbonate reacts with hydrochloric acid according to the following equation: CaCO3(s) + 2HCl(aq) → CaCl₂(aq) + CO₂(g) + H₂O(1) What is the theoretical yield, in mol o...
05.05.2022 20:50
3
Chemistry
Which BP unit used in India...
05.05.2022 17:05
1
Chemistry
How to convert Ethanamine into Lactic Acid?...
05.05.2022 17:05
1
Chemistry
Water in wide open vessels in a room makes the surrounding cool why...
05.05.2022 16:01
1
Chemistry
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