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Vaishnavi
Subject: Chemistry
, asked on 10/8/17
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ANS....
Answer
1
Vaishnavi
Subject: Chemistry
, asked on 10/8/17
Q Six grams each of magnesium and oxygen wave allowed to react. Assuming that the reaction is complex, the mass of MgO formed in the reaction is
1) 42 grams 2) 28 grams 3) 21 grams 4) 14 grams
Q. The strength of an aqueous solution of
I
2
can be determined by titrating the solution with standard solution of
1. Oxalic acid 2. Sodium thiosulpheric acid 3. Sodium hydroxide 4) Mohr's salt
Answer
1
Aditya
Subject: Chemistry
, asked on 10/8/17
What is homonuclear polyatomic sigma bond ?
Answer
1
Sarthak Manojkumar Jaiswal
Subject: Chemistry
, asked on 10/8/17
Why does the p,d,f orbitals which are directional overlap more as compared to s orbital which is non directional and sphere in shape? (For me s orbital should overlap more as it is all around and can easily overlap with any, directional or non directional orbital,so plz explain in detail and with a diagram or any animation)
Answer
2
Sarthak Manojkumar Jaiswal
Subject: Chemistry
, asked on 10/8/17
Heat of vapourization of water is higher than HF,however strength of H-bond in HF is higher than water.explain
Answer
1
Sarthak Manojkumar Jaiswal
Subject: Chemistry
, asked on 10/8/17
Molar entropy change of vapourization of acetic acid is less than that of water.explain
Answer
1
Sarthak Manojkumar Jaiswal
Subject: Chemistry
, asked on 10/8/17
Although chlorine has same electronegativity as nitrogen but the former does not form effective H-bonding.explain
Answer
1
Sarthak Manojkumar Jaiswal
Subject: Chemistry
, asked on 10/8/17
The experimental molecular weight of acetic acid is just double than theoretical molecular weight of acetic acid.why
Answer
1
Sarthak Manojkumar Jaiswal
Subject: Chemistry
, asked on 10/8/17
CH4 and H2O have nearly same molecular weight.Yet CH4 has a boiling point 112K and water 373K.explain
Answer
1
Sarthak Manojkumar Jaiswal
Subject: Chemistry
, asked on 10/8/17
Glycerol is more viscous than ethanol.explain
Answer
2
Sarthak Manojkumar Jaiswal
Subject: Chemistry
, asked on 10/8/17
O-hydroxy benzaldehyde is a liquid at room temperature while P-hydroxy benzaldehyde is a high melting solid.why
Answer
1
Sarthak Manojkumar Jaiswal
Subject: Chemistry
, asked on 10/8/17
O-Nitophenol is less soluble in H2O than P-Nitrophenol.why
Answer
2
Sarthak Manojkumar Jaiswal
Subject: Chemistry
, asked on 10/8/17
KHF2 is possible but not KHBr2 orKHI2.why
Answer
2
Sarthak Manojkumar Jaiswal
Subject: Chemistry
, asked on 10/8/17
HI is the strongest halogen acid,whereas HF is the weakest.why
Answer
2
Sarthak Manojkumar Jaiswal
Subject: Chemistry
, asked on 10/8/17
Boiling point of o-nitophenol is less than mete and para nirophenol.why
Answer
1
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ANS....
1) 42 grams 2) 28 grams 3) 21 grams 4) 14 grams
Q. The strength of an aqueous solution of can be determined by titrating the solution with standard solution of
1. Oxalic acid 2. Sodium thiosulpheric acid 3. Sodium hydroxide 4) Mohr's salt