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Recent questions tagged medium

Arrange the following compounds in order of increasing dipole moment? (I) Toluene (II) m-dichlorobenzene (III) o-dichlorobenzene (IV) P-dichlorobenzene

asked Apr 1, 2014 by meena.p

1 answer

The hybridisation of atomic orbitals of nitrogen in $NO_2^{+},NO_3^{-}$ and $NH_4^{+}$ are

asked Apr 1, 2014 by meena.p

1 answer

Which of the following arrangement of molecules is correct on the basis of their dipole moments?

asked Apr 1, 2014 by meena.p

1 answer

$0.005\;cm$ thick coating of silver is deposited on a plate of $0.5 \;m^2$ area. The number of silver atoms deposited on the plate are (atomic mass of silver $=108$ , and its density $=7.9g cm^{-3}$

asked Apr 1, 2014 by meena.p

1 answer

Haemoglobin contains $0.33 \%$ of irons by weight. The molecular weight of haemoglobion is approximately $67200$. The number of iron atoms (at wt of $Fe=56$) present in one molecule of haemolgobin is

asked Apr 1, 2014 by meena.p

1 answer

A hydrocarbon contains $85.7 \%C$ If $42\;mg$ of the compound contains $3.01 \times 10^{20}$ molecules, the molecular formula of the compound is

asked Apr 1, 2014 by meena.p

1 answer

How many g of KCl would have to be dissolved in $60\;g\; H_2O$ to give $20\%$ by weight of solution ?

asked Apr 1, 2014 by meena.p

1 answer

Which of the following hormones contain iodine?

asked Mar 31, 2014 by thanvigandhi_1

1 answer

Who is regarded as Father of Ecology in India

asked Mar 31, 2014 by sreemathi.v

1 answer

Substance is found to contain $7 \%$ nitrogen, The minimum molecular weight of it is

asked Mar 31, 2014 by meena.p

1 answer

Two Containers P and Q of equal volume (1 litre each) contain 6g of $O_2$ and $SO_2$ respectively at $300\;k$ and 1 atmosphere then,

asked Mar 31, 2014 by meena.p

1 answer

What quantity of limestone $(CaCO_3)$ on heating will give $56\;kg$ of $CaO$?

asked Mar 31, 2014 by meena.p

1 answer

The Loschmidt number is the number of

asked Mar 31, 2014 by meena.p

1 answer

If $p^{th},\:q^{th}\:\:and\:\:r^{th}$ terms oa an A.P. are $a,\:b\:and\:c$ respectively, then show that $(q-r)a+(r-p)b+(p-q)c=0$

asked Mar 31, 2014 by rvidyagovindarajan_1

1 answer

At what temperature the molecule of nitrogen will have the same rms velocity as the molecule of oxygen at $\;127^{0}C\;$ ?

asked Mar 31, 2014 by yamini.v

1 answer

At room temperature , the rms speed of the molecules of a diatomic gas is found to be 1933 m/s . The gas is

asked Mar 31, 2014 by yamini.v

1 answer

The sum of first four terms of an A.P. is $56$. The sum of last four terms is $112$. If its first term is $11$ then find the number of terms.

asked Mar 30, 2014 by rvidyagovindarajan_1

1 answer

The chemical changes in DNA molecule that could lead to synthesis of protein with an altered amino acid sequence is called

asked Mar 30, 2014 by thanvigandhi_1

1 answer

The unique property of DNA to synthesis an exact copy of itself is called

asked Mar 30, 2014 by thanvigandhi_1

1 answer

Excess of which vitamin cannot be stored in the body?

asked Mar 30, 2014 by thanvigandhi_1

1 answer

Hypervitaminosis is due to

asked Mar 30, 2014 by thanvigandhi_1

1 answer

The human body cannot digest

asked Mar 30, 2014 by thanvigandhi_1

1 answer

The monosaccharide which is more sweater than sucrose is

asked Mar 30, 2014 by thanvigandhi_1

1 answer

The sum of three numbers in G.P. is $56$. If we subtract $1,7,21$ from the numbers in that order, we obtain an A.P. Find the numbers.

asked Mar 30, 2014 by rvidyagovindarajan_1

1 answer

The chemical name of Vitamin A Is

asked Mar 30, 2014 by thanvigandhi_1

1 answer

The correct statement about the following sugars X and Y is

asked Mar 30, 2014 by thanvigandhi_1

1 answer

Which one of the following statements are true for protein synthesis(Translation)?

asked Mar 30, 2014 by thanvigandhi_1

1 answer

In both DNA and RNA heterocyclic base and phosphate ester linkages are at

asked Mar 30, 2014 by thanvigandhi_1

1 answer

Which of the following biomolecules is insoluble in water?

asked Mar 30, 2014 by thanvigandhi_1

1 answer

The two farms of D-glycopyranose are called

asked Mar 30, 2014 by thanvigandhi_1

1 answer

The cell membranes are mainly composed of

asked Mar 30, 2014 by thanvigandhi_1

1 answer

Which functional group participate in disulphide bond formation in proteins

asked Mar 30, 2014 by thanvigandhi_1

1 answer

The pair of compounds in which both the compound shows positivities with Tollens reagent is

asked Mar 30, 2014 by thanvigandhi_1

1 answer

If $f$ is a function satisfying $f(x+y)=f(x).f(y)\:\:\forall x,y\in N$ such that $f(1)=3\:\:and\:\:\displaystyle\sum ^{n}_{x=1} f(x)=120$, then find the value of $n$.

asked Mar 29, 2014 by rvidyagovindarajan_1

1 answer

Find the sum of all the integers from $1$ and $100$ that are divisible by $2$ or $5$.

asked Mar 29, 2014 by rvidyagovindarajan_1

1 answer

A gas occupies 0.418 litre at 740 mm of Hg and $27^{\large\circ}C$. Calculate its Volume at STP.

asked Mar 29, 2014 by sharmaaparna1

1 answer

The pressure of the atmosphere is $2\times10^{-6}$ at about 100 mile above the earth and temperature is $-180^{\large\circ}C$ .How many mole are there in 1 mL gas at this altitude?

asked Mar 29, 2014 by sharmaaparna1

1 answer

A 20g chunk of dry ice is placed in an empty 0.75 litre wine bottle tightly closed . What would be the final pressure in the bottle after all $CO_2$ has been evaporated and temperature reaches to $25^{\large\circ}C$

asked Mar 29, 2014 by sharmaaparna1

1 answer

The nucleic acid base having two possible binding sites is

asked Mar 29, 2014 by thanvigandhi_1

1 answer

A gas at $0^{\large\circ}C$ and 1 atm pressure occupies 2.5 litre . What change in temperature would be necessary if the pressure is to be adjusted to 1.5 atm and the gas has been transferred to a 2.0 litre container?

asked Mar 29, 2014 by sharmaaparna1

1 answer

The enzyme which hydrolyses triglycerides to fatty acids and glycerol is called

asked Mar 29, 2014 by thanvigandhi_1

1 answer

Number of chiral carbons In $ \beta -D-(+)$ glucose is

asked Mar 29, 2014 by thanvigandhi_1

1 answer

Which of the following represents peptide linkage?

asked Mar 29, 2014 by thanvigandhi_1

1 answer

The correct statement in respect of protein haemoglobin that is

asked Mar 29, 2014 by thanvigandhi_1

1 answer

A hormone which helps in conversion of glucose to glycogen is

asked Mar 29, 2014 by thanvigandhi_1

1 answer

The sequence of how many nucleotides in messenger RNA makes a codon for amino acid

asked Mar 29, 2014 by thanvigandhi_1

1 answer

Which base is present in RNA but not in DNA?

asked Mar 29, 2014 by thanvigandhi_1

1 answer

Insulin production and its action in human body are responsible for the level of diabetes The compound belong to which of the following categories?

asked Mar 29, 2014 by thanvigandhi_1

1 answer

The reason for the double helical structure of DNA is the operation of

asked Mar 29, 2014 by thanvigandhi_1

1 answer

Complete hydrolysis of cellulose gives

asked Mar 29, 2014 by thanvigandhi_1

1 answer

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