Recent questions tagged 98

Under which of the following conditions will there be no change in the reading frame of following mRNA ? 5'AACAGCGGUGCUAUU3'

asked Jul 8, 2019 by pady_1

1 answer

Among the following compounds which have more than one type of hybridization for carbon atom : 1. $CH_3.CH_2.CH_2.CH_3$ 2.$CH_3.CH= CH.CH_3$ 3. $CH_2 = CH - CH = CH_2$ 4.$H-C = C-H $

asked Dec 19, 2018 by pady_1

1 answer

Which of the following reagents converts nitrobenzene into N-phenyl hydroxylamine ?

asked Dec 19, 2018 by pady_1

0 answers

Chloroethane reacts with Y to form NaCl and Z. One mole of Z reacts with two moles of Hi to form water and iodo ethane. Which of the following is Y ?

asked Dec 19, 2018 by pady_1

0 answers

Equilibrium constant for the reaction $H_2O(g) + CO (g) \leftrightharpoons H_2(g) + CO_2 (g)$ is 81. If the velocity constant of the forward reaction is $162\; L\; mol^{-1} s^{-1}$. What is the velocity constant (in $L\;mol^{-1} s^{-1}$) for the backward reaction ?

asked Dec 11, 2018 by pady_1

0 answers

$\beta$- particle is emitted in a radioactive reaction when :

asked Dec 11, 2018 by pady_1

0 answers

Consider the reaction equilibrium : $2SO_2(g) + O_2(g) \rightleftharpoons 2SO_3 (g); \; \; \; \Delta H^{\circ} = -198 kJ$ On the basis of Le-Chatelier's principle, the condition favourable for the forward reaction is :

asked Dec 11, 2018 by pady_1

0 answers

A body is at rest at x = 0. At t = 0, it starts moving in the positive x-direction with a constant acceleration. At the same instant another body passes through x = 0 moving in the positive x- direction with a constant speed. The position of the first body is given by $x_1$(t) after time ‘t’ and that of the second body by $x_2$(t) after the same time interval. Which of the following graphs correctly describes $(x_1 – x_2)$ as a function of time ‘t’?

asked Nov 29, 2018 by pady_1

0 answers

In a saturated solution of the sparingly soluble strong electrolyte $AgIO_3$ (Molecular mass = 283) the equilibrium which sets in is $AgIO_3(s) \rightleftharpoons Ag^+ (aq) + IO_3^- (ag)$ if the solubility product constant $K_{sp}$ of $AgIO_3$ at a given temperature is $1.0 \times 10^{-8}$, what is the mass of $AgIO_3$ contained in 100 mL of its saturated solution ?

asked Nov 29, 2018 by pady_1

0 answers

The equilibrium constant for the reaction $SO_3 (g) \rightleftharpoons SO_2(g) + \frac{1}{2} O_2 (g)$ is $K_c = 4.9 \times 10^{-2}$. The value of $K_c$ for the reaction $2SO_2 (g) + O_2(g) \leftrightharpoons 2SO_3 (g)$ will be :

asked Nov 13, 2018 by pady_1

0 answers

A reaction involving two different reactants can never be

asked Nov 5, 2018 by pady_1

0 answers

Which one of the following statements is false ?

asked Nov 5, 2018 by pady_1

1 answer

Oxygen is not produced during photosyntheis by

asked Aug 21, 2018 by pady_1

1 answer

The water potential of pure water is :

asked Aug 21, 2018 by pady_1

1 answer

Identify the correct statement on 'inhibin' -

asked Aug 21, 2018 by pady_1

1 answer

A childless couple can be assisted to have a child through a technique called GIFT. The full form of this technique is :

asked Aug 21, 2018 by pady_1

1 answer

When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as:

asked Aug 20, 2018 by pady_1

1 answer

Interfascicular cambium develops from the cells of :

asked Aug 20, 2018 by pady_1

1 answer

$CH_3CHO \;and\; C_6H_5CH_2CHO$ can be distinguised chemically by :

asked Aug 20, 2018 by pady_1

1 answer

Which one of the following is employed as Antihistamine ?

asked Aug 16, 2018 by pady_1

1 answer

The number of atoms in 0.1 mol of a triatomic gas is : ($N_A=6.02\times10^{23} mol^{-1}$)

asked Jul 26, 2018 by pady_1

1 answer

The state of hybridization of $C_2, C_3, C_5$ and $C_6$ the hydrocarbon â€“ is in the following sequence :

asked Jul 26, 2018 by pady_1

1 answer

A strong base can abstract an $\alpha$-hydrogen from:

asked Jul 26, 2018 by pady_1

1 answer

Which one of the following vitamins is water soluble :

asked Jul 26, 2018 by pady_1

2 answers

Which one of the following orders is not in according with the property stated against it ?

asked Jul 25, 2018 by pady_1

1 answer

Which of the following is the electron deficient molecule -

asked Jul 24, 2018 by pady_1

1 answer

A solid compound 'X' on heating gives $CO_2$ gas and a residue. The residue mixed with water forms 'Y'. On passing an excess of $CO_2$ through 'Y' in water, a clear solution, 'Z' is obtained. On boiling 'Z', compound 'X' is reformed. The compound 'X' is :-

asked Jul 24, 2018 by pady_1

1 answer

Glycolysis is : -

asked Jul 24, 2018 by pady_1

1 answer

Geometrical isomers differ in : -

asked Jul 23, 2018 by pady_1

1 answer

Ionisation constant of $CH_3COOH$ is $1.7 \times 10^{–5}$ and concentration of $H^+$ ions is $3.4 \times 10^{–4}$. Then find out initial concentration of $CH_3COOH$ molecules :-

asked Jul 20, 2018 by pady_1

1 answer

Volume of $CO_2$ obtained by the complete decomposition of 9.85 gm. $BaCO_3$ is :

asked Jul 20, 2018 by pady_1

1 answer

Which one of the following pairs of substances on reaction will not evolve $H_2$ gas ?

asked Jun 15, 2018 by pady_1

1 answer

The shop keeper sells three different types of marbles. The Blue marbles cost 20 paise each, the Green ones cost 90 paise each and the Black ones cost 5 paise each. Each bag of marbles has 5 Black marbles, 1 Green marble and 2 Blue marbles. I bought a certain number of bags and paid Rs. 6.50 in all for the Blue and Green Marbles. How much did I pay for the Black marbles?

asked Sep 26, 2016 by balaji.thirumalai

1 answer

The shop keeper sells three different types of marbles. The Blue marbles cost 20 paise each, the Green ones cost 90 paise each and the Black ones cost 5 paise each. Each bag of marbles has 5 Black marbles, 1 Green marble and 2 Blue marbles. I bought a certain number of bags and paid Rs. 6.50 in all for the Blue and Green Marbles. How many bags did I buy in all?

asked Sep 26, 2016 by balaji.thirumalai

1 answer

What will be the labor charge for tiling a hall 26 m long and 18 m wide at the rate of $18 per sq. m?

asked Sep 26, 2016 by balaji.thirumalai

1 answer

Which of the following triangles have no lines of symmetry?

asked Aug 26, 2016 by balaji.thirumalai

1 answer

Which of the following triangles have no lines of symmetry?

asked Aug 26, 2016 by balaji.thirumalai

1 answer

A is to the North of B, and C is to the East of B. In what direction is A with respect to C ?

asked Dec 31, 2015 by pady_1

2 answers

How many lines of symmetry does a circle have?

asked Dec 31, 2015 by pady_1

1 answer

What will be the labor charge for tiling a hall 52 m long and 18 m wide at the rate of $8 per sq. m?

asked Dec 31, 2015 by pady_1

1 answer

John can eat a sixth of a pizza in two minutes. It takes 3 minutes for Billy to eat one quarter of the same pizza. If John and Billy start eating one pizza each, who will finish first?

asked Dec 31, 2015 by pady_1

0 answers

A car travels at a speed of 25 metres per second. Find its speed in km per hour.

asked Dec 31, 2015 by pady_1

0 answers

Ask Questions, Get Answers

Under which of the following conditions will there be no change in the reading frame of following mRNA ? 5'AACAGCGGUGCUAUU3'

Among the following compounds which have more than one type of hybridization for carbon atom :<br> 1. $CH_3.CH_2.CH_2.CH_3$ <br> 2.$CH_3.CH= CH.CH_3$ <br>3. $CH_2 = CH - CH = CH_2$ <br> 4.$H-C = C-H $

Which of the following reagents converts nitrobenzene into N-phenyl hydroxylamine ?

Chloroethane reacts with Y to form NaCl and Z. One mole of Z reacts with two moles of Hi to form water and iodo ethane. Which of the following is Y ?

Equilibrium constant for the reaction $H_2O(g) + CO (g) \leftrightharpoons H_2(g) + CO_2 (g)$ is 81. If the velocity constant of the forward reaction is $162\; L\; mol^{-1} s^{-1}$. What is the velocity constant (in $L\;mol^{-1} s^{-1}$) for the backward reaction ?

$\beta$- particle is emitted in a radioactive reaction when :

Consider the reaction equilibrium : <br> $2SO_2(g) + O_2(g) \rightleftharpoons 2SO_3 (g); \; \; \; \Delta H^{\circ} = -198 kJ$ <br> On the basis of Le-Chatelier's principle, the condition favourable for the forward reaction is :

The equilibrium constant for the reaction <br> $SO_3 (g) \rightleftharpoons SO_2(g) + \frac{1}{2} O_2 (g)$ <br> is $K_c = 4.9 \times 10^{-2}$. The value of $K_c$ for the reaction <br> $2SO_2 (g) + O_2(g) \leftrightharpoons 2SO_3 (g)$ <br> will be :

A reaction involving two different reactants can never be

Which one of the following statements is false ?

Oxygen is not produced during photosyntheis by

The water potential of pure water is :

Identify the correct statement on 'inhibin' -

A childless couple can be assisted to have a child through a technique called GIFT. The full form of this technique is :

When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as:

Interfascicular cambium develops from the cells of :

$CH_3CHO \;and\; C_6H_5CH_2CHO$ can be distinguised chemically by :

Which one of the following is employed as Antihistamine ?

The number of atoms in 0.1 mol of a triatomic gas is : ($N_A=6.02\times10^{23} mol^{-1}$)

The state of hybridization of $C_2, C_3, C_5$ and $C_6$ the hydrocarbon â€“ <br> <br> is in the following sequence :

A strong base can abstract an $\alpha$-hydrogen from:

Which one of the following vitamins is water soluble :

Which one of the following orders is not in according with the property stated against it ?

Which of the following is the electron deficient molecule -

A solid compound 'X' on heating gives $CO_2$ gas and a residue. The residue mixed with water forms 'Y'. On passing an excess of $CO_2$ through 'Y' in water, a clear solution, 'Z' is obtained. On boiling 'Z', compound 'X' is reformed. The compound 'X' is :-

Glycolysis is : -

Geometrical isomers differ in : -

Ionisation constant of $CH_3COOH$ is $1.7 \times 10^{–5}$ and concentration of $H^+$ ions is $3.4 \times 10^{–4}$. Then find out initial concentration of $CH_3COOH$ molecules :-

Volume of $CO_2$ obtained by the complete decomposition of 9.85 gm. $BaCO_3$ is :

Which one of the following pairs of substances on reaction will not evolve $H_2$ gas ?

What will be the labor charge for tiling a hall 26 m long and 18 m wide at the rate of $18 per sq. m?

Which of the following triangles have no lines of symmetry?

Which of the following triangles have no lines of symmetry?

A is to the North of B, and C is to the East of B. In what direction is A with respect to C ?

How many lines of symmetry does a circle have?

What will be the labor charge for tiling a hall 52 m long and 18 m wide at the rate of $8 per sq. m?

John can eat a sixth of a pizza in two minutes. It takes 3 minutes for Billy to eat one quarter of the same pizza. If John and Billy start eating one pizza each, who will finish first?

A car travels at a speed of 25 metres per second. Find its speed in km per hour.