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Aluminum oxide can't be reduced by a reducing agent. Why? |
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asked by Sanika Rai (sanika_rai) 7 years ago |
2 |
Choose odd one out and give reason for your choice
Diptheria, Cholera, Tetanus, Chicken-pox |
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asked by Prerna GP (prernagp) 7 years ago |
2 |
A body having a mass ''m'' is broken down into two pafts one having mass of 2/3m and another 1/3m. calculate the specific heat capacities and heat capacities.....
the ans should be heat capacity remains same as it does not depends on mass but specific heat capacity is 2:1 ? |
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asked by Nishant Shah (nishantshahroxx) 7 years ago |
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wts the diff btwn rann of kutch and gulf of kutch.. |
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asked by Srichitra Vankadari (hpsk) 7 years ago |
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+ 2 more questions by hpsk
i am not abl eto see the answers.. you guys posted.. whats wrong |
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asked by Srichitra Vankadari (hpsk) 7 years ago |
4 |
the following questions are related to chemistry:
1)name 2 metallic carbonates that are stable towards heat.
2)a set of compounds having same general formula,similar methods of preparation and similar chemical properties.
3)what is the physical state of phosphorous penta chloride and phosphorous trichloride(both are not in same state)
4)name the first transition element
5)find the odd one out:
boron,carbon,neon,sulphur(your choice should not be on the basis of valency)
6)name the compound used to bleach silk and the bleaching action is by the process of reduction
7)name the compound formed from its dry gases in the presence of sun light
8)choose the odd one out:
Nacl,MgO,CaF2,HCl
HCl,NH3,SO2,H2S
9)NAME THE most common freon
10)the bonding present in pcl3 and pcl5 is
11)give reasons why the solution of ferric chloride is acidic in nature.
12)the temperature of gases is lowered before they enter into oxidation chamber during ostwald's process.WHY?
13)NAME A GREEN COLOURED COMPOUND WHICH ON HEATING CHANGES TO BLACK
14)name a salt soluble in ammonium acetate
15)a solution which readily absorbs carbon di oxide
16)write the missing word or words in order to make the below statements completely correct:
a)calcium chloride is used in desiccator(im sorry.. bt wts desiccator?)
b)zinc oxide is yellow when hot and white when cold(i think the statewment is right... correct me if i am mistaken
17)write two balanced equations for the conversion of ammonia to nitrogen
18)the insoluble solid formed when 2 solutions are mixed together
19)which 2 chemical compounds are added to pure bauxite at the time of electrolytic reduction and WHY?
20)METAL(A) in the presence of chlorine, gives out reddish brown scales(B) which give out reddish brown precipitate(C) in the presence of sodium hydroxide solution...
in this context::
a)name A,B and C
b)what are the conditions for the reaction btwn metal(A) and cl to get reddish brown scales?also give the equations for all the conversions took place..
21)gas a with gas b in the presencee of burning magnesium gives compound c..gas a and gas b directly mix to give alkaline gas d
a)name a,b and c
b)name the process when gas a combines directly with b to form alkaline gas D
PLEASE REPLY AS SOON AS POSSIBLE..AS FAR AS POSSIBLE RY TO GIVE EQUATIONS ALSO..THANKS AND REGARDS.... |
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asked by Srichitra Vankadari (hpsk) 7 years ago |
3 |
Interesting question(if you think that its veryyy easy then don't make me feel like a dumb!)
Why imbibition occurs?(its given in concise) |
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asked by Richeek Das (hamba) 7 years ago |
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can anyone ans this(especially ved pongala pls)
program to print
a
a a
a a a
a a a a
a a a
a a
a
pls pLEASE pLeAsE |
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asked by Rahul Jain (rahulhpsbegumpet) 7 years ago |
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Do we have to do history topics from the scope of syllabus or the whole thing?
Please reply fast! |
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asked by Aayush Kapoor (acurry) 7 years ago |
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Write a Program to Check which letter occurs the most.
For e.g. Example Sentence -- Superman likes seashells and seashores
Example Output -- The Letter 's' occurs 8 times |
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asked by Varun Subudhi (varun123427) 7 years ago |
1 | + 1 more questions by varun123427
What do you mean by angle of Minimum Deviation?(Refraction of light-Physics) |
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asked by Varun Subudhi (varun123427) 7 years ago |
1 |
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medha said to me, "I should be grateful if you help me." Change to indirect sentence.
Is it:
1 Medha told me that she would be grateful if I helped her.
Or
2Medha told me that she would be grateful if I would have helped her. |
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asked by Anshika J (anmj) 7 years ago |
1 | + 5 more questions by anmj
Never will you ever sit in the auditorium again.
What's wrong in this sentence? |
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asked by Anshika J (anmj) 7 years ago |
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swimming is the most healthy of all exercises.
What's wrong in this sentence? |
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asked by Anshika J (anmj) 7 years ago |
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He was greatly incensed ------my attitude. |
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asked by Anshika J (anmj) 7 years ago |
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Friends, what kind of topics can be asked for composition in boards, according to you?
(Apart from terrorism and women empowerment?) |
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asked by Anshika J (anmj) 7 years ago |
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no one can approve -------- for such behaviour |
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asked by Anshika J (anmj) 7 years ago |
2 |
What is Chordae Tedinae?pls help |
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asked by Disha Ghatak (disha95) 7 years ago |
2 |
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