Recent questions tagged 100

Match the following organisms with the products they produce :-

asked Jul 8, 2019 by pady_1

1 answer

Silica is soluble in :

asked Dec 19, 2018 by pady_1

0 answers

The oxidation number of Mn in potassium permanganate is :

asked Dec 19, 2018 by pady_1

0 answers

Which of the following is a tertiary alcohol ?

asked Dec 19, 2018 by pady_1

0 answers

How many litres of oxygen (at STP) are required for complete ccombustion of 39 g of liquid benzene ? (Atomic weights : C = 12, O = 16, H = 1 )

asked Dec 11, 2018 by pady_1

0 answers

Refining of impure copper with zinc impurity is to be done by electrolysis using electrodes as :

asked Dec 11, 2018 by pady_1

0 answers

For the reaction equilibrium, $N_2O_4 (g) \rightleftharpoons 2 NO(g)$ the concentrations of $N_2O_4$ and $NO_2$ at equilibrium are $4.8 \times 10^{-2}$ and $1.2 \times 10^{-2} mol L^{-1}$ respectively. The value of $K_c$ for the reaction is :

asked Dec 11, 2018 by pady_1

0 answers

A thin spherical shell of radius R has charge Q spread uniformly over its surface. Which of the following graphs most closely represents the electric field E(r) produced by the shell in the range $0\leq r\infty$, where r is the distance from the centre of the shell?

asked Nov 29, 2018 by pady_1

0 answers

Which one of the following conformations of cyclohexane is chiral ?

asked Nov 29, 2018 by pady_1

0 answers

Given the data at $25^{\circ}C$, $Ag + I^- \to AgI + e^- ;\; \; \; E^{\circ} = 0.152 \;V$ $\;\;\;\;\;\;Ag \to Ag^+ + e^-; \; \; \; E^{\circ} = -0.800 \; V$ What is the value of $\log K_{sp}$ for $AgI$ ? $(2.303 \frac{RT}{F} = 0.059\;V)$

asked Nov 13, 2018 by pady_1

0 answers

During the process of electrolytic refining of copper, some metals present as impurity settle as 'anode mud'. These are :

asked Nov 5, 2018 by pady_1

0 answers

An ideal gas expands in volume from $1 \times 10^{-3} m^{3} $ to $1 \times 10^{-2} m^3$ at 300 K against a constant pressure of $1 \times 10^5 \; Nm^{-2}$. The work done is

asked Nov 5, 2018 by pady_1

1 answer

In which of the following forms is iron absorbed by plants ?

asked Aug 21, 2018 by pady_1

1 answer

An important characteristic that Hemichordates share with Chordates is :

asked Aug 21, 2018 by pady_1

1 answer

A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the $F_1$ plants were selfed the resulting genotypes were in the ratio of -

asked Aug 21, 2018 by pady_1

1 answer

The structures that help some bacteria to attach to rocks and / or host tissues are :

asked Aug 21, 2018 by pady_1

1 answer

Which one of the following statements is correct?

asked Aug 20, 2018 by pady_1

1 answer

Lenticels are involved in

asked Aug 20, 2018 by pady_1

1 answer

Acetone is treated with excess of ethanol in the presence of hydrochloric acid. The product obtained is OPTION :

asked Aug 20, 2018 by pady_1

1 answer

Which one of the following statement is not true ?

asked Aug 16, 2018 by pady_1

2 answers

The tendency of $BF_3$ , $BCl_3$ and $BBr_3$ to behave as Lewis acid decreases in the sequence:

asked Jul 26, 2018 by pady_1

1 answer

Which of the following hormones contains iodine ?

asked Jul 26, 2018 by pady_1

2 answers

If 'a' stands for the edge length of the cubic 3 systems : simple cubic, body centered cubic and face centered cubic, then the ratio of radii of the spheres in these systems will be respectively.

asked Jul 26, 2018 by pady_1

0 answers

Which one of the following polymers is prepared by condensation polymerization ?

asked Jul 26, 2018 by pady_1

1 answer

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asked Jul 25, 2018 by pady_1

1 answer

The correct order of acid strength is -

asked Jul 24, 2018 by pady_1

1 answer

In $BrF_3$ molecule, the lone pairs occupy equatorial positions to minimize :-

asked Jul 24, 2018 by pady_1

1 answer

Chargaff's rule states that in an organism : -

asked Jul 24, 2018 by pady_1

1 answer

Which is not true statement : -

asked Jul 23, 2018 by pady_1

1 answer

If a $_a^b X$ species emits firstly a positron, then two $\alpha$ and two $\beta$ and at last one $\alpha$ is also after intially it fainally convets into stable $_d^cY$ species so correct relation will be : -

asked Jul 20, 2018 by pady_1

1 answer

R and S enantiomer differ in :

asked Jul 20, 2018 by pady_1

1 answer

One mole of an ideal gas at 300 K is expanded isothermally from an initial volume of 1 litre to 10 litres. The $\Delta E$ for this process is ($R = 2 cal. mol^{ –1}{ K^–1}$) :

asked Jun 15, 2018 by pady_1

2 answers

A watch shows 10:30 as the time. If the minute hand points to South-West, in what direction does the hour hand point?

asked Dec 31, 2015 by pady_1

3 answers

Which one of the following is discrete data?

asked Dec 31, 2015 by pady_1

1 answer

Find the breadth of a football field, whose area is 5000 sq m and length is 250 m.

asked Dec 31, 2015 by pady_1

1 answer

Mel had $\$$35 and withdraw some more money from his bank account. He bought a pair of trousers at $\$$34.00, two shirts at $\$$16.00 each and 2 pairs of shoes at $\$$24.00 each. After the shopping, he had $32.00 left. How much money did Mel withdraw from the bank?

asked Dec 31, 2015 by pady_1

1 answer

A fox ran 1000 m in 5 minutes. Find its speed.

asked Dec 31, 2015 by pady_1

0 answers

Ask Questions, Get Answers

Match the following organisms with the products they produce :-

Silica is soluble in :

The oxidation number of Mn in potassium permanganate is :

Which of the following is a tertiary alcohol ?

How many litres of oxygen (at STP) are required for complete ccombustion of 39 g of liquid benzene ? <br> (Atomic weights : C = 12, O = 16, H = 1 )

Refining of impure copper with zinc impurity is to be done by electrolysis using electrodes as : <br> <br>

For the reaction equilibrium, <br> $N_2O_4 (g) \rightleftharpoons 2 NO(g)$ <br> the concentrations of $N_2O_4$ and $NO_2$ at equilibrium are $4.8 \times 10^{-2}$ and $1.2 \times 10^{-2} mol L^{-1}$ respectively. The value of $K_c$ for the reaction is :

A thin spherical shell of radius R has charge Q spread uniformly over its surface. Which of the following graphs most closely represents the electric field E(r) produced by the shell in the range $0\leq r\infty$, where r is the distance from the centre of the shell?

Which one of the following conformations of cyclohexane is chiral ?

Given the data at $25^{\circ}C$, <br> $Ag + I^- \to AgI + e^- ;\; \; \; E^{\circ} = 0.152 \;V$ <br> $\;\;\;\;\;\;Ag \to Ag^+ + e^-; \; \; \; E^{\circ} = -0.800 \; V$ <br> What is the value of $\log K_{sp}$ for $AgI$ ? <br> $(2.303 \frac{RT}{F} = 0.059\;V)$

During the process of electrolytic refining of copper, some metals present as impurity settle as 'anode mud'. These are :

An ideal gas expands in volume from $1 \times 10^{-3} m^{3} $ to $1 \times 10^{-2} m^3$ at 300 K against a constant pressure of $1 \times 10^5 \; Nm^{-2}$. The work done is

In which of the following forms is iron absorbed by plants ?

An important characteristic that Hemichordates share with Chordates is :

A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the $F_1$ plants were selfed the resulting genotypes were in the ratio of -

The structures that help some bacteria to attach to rocks and / or host tissues are :

Which one of the following statements is correct?

Lenticels are involved in

Acetone is treated with excess of ethanol in the presence of hydrochloric acid. The product obtained is <br><br> OPTION : <br>

Which one of the following statement is not true ?

The tendency of $BF_3$ , $BCl_3$ and $BBr_3$ to behave as Lewis acid decreases in the sequence:

Which of the following hormones contains iodine ?

If 'a' stands for the edge length of the cubic 3 systems : simple cubic, body centered cubic and face centered cubic, then the ratio of radii of the spheres in these systems will be respectively.

Which one of the following polymers is prepared by condensation polymerization ?

<img src = ""/>

The correct order of acid strength is -

In $BrF_3$ molecule, the lone pairs occupy equatorial positions to minimize :-

Chargaff's rule states that in an organism : -

Which is not true statement : -

If a $_a^b X$ species emits firstly a positron, then two $\alpha$ and two $\beta$ and at last one $\alpha$ is also after intially it fainally convets into stable $_d^cY$ species so correct relation will be : -

R and S enantiomer differ in :

One mole of an ideal gas at 300 K is expanded isothermally from an initial volume of 1 litre to 10 litres. The $\Delta E$ for this process is ($R = 2 cal. mol^{ –1}{ K^–1}$) :

A watch shows 10:30 as the time. If the minute hand points to South-West, in what direction does the hour hand point?

Which one of the following is discrete data?

Find the breadth of a football field, whose area is 5000 sq m and length is 250 m.

Mel had $\$$35 and withdraw some more money from his bank account. He bought a pair of trousers at $\$$34.00, two shirts at $\$$16.00 each and 2 pairs of shoes at $\$$24.00 each. After the shopping, he had $32.00 left. How much money did Mel withdraw from the bank?

A fox ran 1000 m in 5 minutes. Find its speed.