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5701.

Which of the following is not a property of a base?

Answer»

Which of the following is not a property of a base?


5702.

The only guarantee we have of taste is that it will change. In response to novelty, even as the resistance to the unfamiliar reaches a threshold, fluency begets liking. Consider the case of the Sydney Opera House. A few decades ago, the now widely cherished building was the center of a national scandal. Not only did the building not fit the traditional form of an opera house; it did not fit the traditional form of a building. No one thought an opera house could look like the Sydney Opera House until architect Jørn Utzon, taking his idea from a peeled orange, said it could. Utzon changed the idea of what one could ask for in the building, projecting future tastes no one knew they had.

Answer» The only guarantee we have of taste is that it will change. In response to novelty, even as the resistance to the unfamiliar reaches a threshold, fluency begets liking. Consider the case of the Sydney Opera House. A few decades ago, the now widely cherished building was the center of a national scandal. Not only did the building not fit the traditional form of an opera house; it did not fit the traditional form of a building. No one thought an opera house could look like the Sydney Opera House until architect Jørn Utzon, taking his idea from a peeled orange, said it could. Utzon changed the idea of what one could ask for in the building, projecting future tastes no one knew they had.
5703.

State the various ways in which we can avoid (or minimize) the use of plastics.

Answer»

State the various ways in which we can avoid (or minimize) the use of plastics.

5704.

What is mean by green house effect?

Answer»

What is mean by green house effect?

5705.

Although the carbon% has not changed over the millions of years of Earth's evolution but there's definitely some change that can be seen now. What are these changes?

Answer»

Although the carbon% has not changed over the millions of years of Earth's evolution but there's definitely some change that can be seen now. What are these changes?


5706.

Why does liquid expands more than solids on heating ?

Answer»

Why does liquid expands more than solids on heating ?

5707.

Please give me odd man out and explain of:- 1.Gold,silver,copper,brass 2.Hydrogen,hydrogen peroxide,carbon dioxide,water vapour 3.Milk,lemon juice,carbon,steal 4.Sugar,salt,baking soda,blue vitriol 4.Hydrogen,sodium,potassium,caebon

Answer» Please give me odd man out and explain of:-
1.Gold,silver,copper,brass
2.Hydrogen,hydrogen peroxide,carbon dioxide,water vapour
3.Milk,lemon juice,carbon,steal
4.Sugar,salt,baking soda,blue vitriol
4.Hydrogen,sodium,potassium,caebon
5708.

What conditions are necessary for formation of petroleum?

Answer»

What conditions are necessary for formation of petroleum?


5709.

Which is the most preferred metal in the laboratory for preparation of hydrogen by the metal-acid reaction?

Answer»

Which is the most preferred metal in the laboratory for preparation of hydrogen by the metal-acid reaction?


5710.

What is the 4R principle?

Answer»

What is the 4R principle?


5711.

What is the chemical name of water?

Answer»

What is the chemical name of water?


5712.

Rutherford’s model of an atom could not explain the behavior of

Answer»

Rutherford’s model of an atom could not explain the behavior of


5713.

Why is biogas a better fuel than animal dung cake? [2 MARKS]

Answer»

Why is biogas a better fuel than animal dung cake? [2 MARKS]

5714.

Which adjective in the following phrase indicates shape? The expensive spherical golden pocket watch

Answer»

Which adjective in the following phrase indicates shape?

The expensive spherical golden pocket watch


5715.

Which of the following will be reduced in air in a city forest when a lot of dust and fly ash is emitted by a coal-based factory in the vicinity? (a) nitrogen (b) carbon dioxide (c) oxygen (d) water vapour

Answer»

Which of the following will be reduced in air in a city forest when a lot of dust and fly ash is emitted by a coal-based factory in the vicinity?

(a) nitrogen

(b) carbon dioxide

(c) oxygen

(d) water vapour

5716.

Question 5 (a) Give reason. Water is not used to control fires involving electrical equipment.

Answer» Question 5 (a)
Give reason.
Water is not used to control fires involving electrical equipment.
5717.

why water is not able to extinguish the fire which is set up by sodium?

Answer»

why water is not able to extinguish the fire which is set up by sodium?

5718.

State the characteristics of synthetic fibres.

Answer»

State the characteristics of synthetic fibres.

5719.

The solution has reached its ___ when any substance added to the solution appears as a separate phase.

Answer»

The solution has reached its ___ when any substance added to the solution appears as a separate phase.


5720.

An open flask containing air is heated from 300 K to 500 k. What percentage of air will be escaped to the atmosphere, if pressure is kept constant?

Answer»

An open flask containing air is heated from 300 K to 500 k. What percentage of air will be escaped to the atmosphere, if pressure is kept constant?


5721.

Which of the following is/are example(s) of combination reaction?

Answer»

Which of the following is/are example(s) of combination reaction?

5722.

Why all polymers are macromolecules but all macromolecules are not polymers.

Answer»

Why all polymers are macromolecules but all macromolecules are not polymers.

5723.

How does overuse of fertilisers make the soil porous and why is that harmful?

Answer»

How does overuse of fertilisers make the soil porous and why is that harmful?

5724.

How is the process of distillation performed? /how can we distill water?

Answer» How is the process of distillation performed? /how can we distill water?
5725.

Best extinguisher for inflammable materials is

Answer»

Best extinguisher for inflammable materials is


5726.

Question 3 (b) Synthetic fibres are synthesized from raw materials called ________.

Answer»

Question 3 (b)
Synthetic fibres are synthesized from raw materials called ________.

5727.

Plastic shows ___ property,hence it can be moulded to any shape.

Answer»

Plastic shows ___ property,hence it can be moulded to any shape.


5728.

Which of the following molecules has one lone pair of electrons on the central atom

Answer»

Which of the following molecules has one lone pair of electrons on the central atom


5729.

Oxide of magnesium is basic in nature because:

Answer»

Oxide of magnesium is basic in nature because:


5730.

Which of the following statement is true regarding greenhouse effect?

Answer»

Which of the following statement is true regarding greenhouse effect?


5731.

Which of these polymers is used for making bullet proof glass?

Answer»

Which of these polymers is used for making bullet proof glass?


5732.

Element A is soft,brittle and does not conduct electricity.Element B is hard,malleable and ductile,and also conducts electricity. Which of the two elements,A or B,is a non-metal ?

Answer»

Element A is soft,brittle and does not conduct electricity.Element B is hard,malleable and ductile,and also conducts electricity. Which of the two elements,A or B,is a non-metal ?

5733.

Which of the following is/are solid(s) at room temperature?

Answer»

Which of the following is/are solid(s) at room temperature?


5734.

Ammonium Chloride and Salt is separated by ______________________ process and the volatile component among these is ____________________.

Answer»

Ammonium Chloride and Salt is separated by ______________________ process and the volatile component among these is ____________________.


5735.

Hairs of shaving brush cling together when it is removed from water due to

Answer»

Hairs of shaving brush cling together when it is removed from water due to


5736.

What are the uses of producer gas and water gas?

Answer» What are the uses of producer gas and water gas?
5737.

One of the following does not contribute in producing acid rain. This one is: (a) nitrogen dioxide (b) nitrogen monoxide (c) carbon monoxide (d) sulphur dioxide

Answer»

One of the following does not contribute in producing acid rain. This one is:

(a) nitrogen dioxide

(b) nitrogen monoxide

(c) carbon monoxide

(d) sulphur dioxide

5738.

The flames of different materials could be of different colours. This is due to

Answer»

The flames of different materials could be of different colours. This is due to


5739.

The nature of the oxide of radium is:

Answer»

The nature of the oxide of radium is:


5740.

A siphon in use is demonstrated in the following figure. The density of the liquid flowing in siphon is 1.5 gm/cc. The pressure difference between the point P and S will be

Answer»

A siphon in use is demonstrated in the following figure. The density of the liquid flowing in siphon is 1.5 gm/cc. The pressure difference between the point P and S will be


5741.

The specific latent heat is given as

Answer»

The specific latent heat is given as


5742.

Milk is a colloid. Select the correct statement regarding milk as a colloidal solution.

Answer»

Milk is a colloid. Select the correct statement regarding milk as a colloidal solution.


5743.

Mg has three natural isotopes whose isotopic masses and relative abundances are respectively 23.98 (78.60%), 24.98(10.11%) and 25.98(11.29%). The atomic mass of Mg will be

Answer»

Mg has three natural isotopes whose isotopic masses and relative abundances are respectively 23.98 (78.60%), 24.98(10.11%) and 25.98(11.29%). The atomic mass of Mg will be


5744.

Question 3 (a)Phosphorus is a very ___ non-metal.

Answer»

Question 3 (a)
Phosphorus is a very ___ non-metal.

5745.

Metal oxides have ph less or grater than 7

Answer» Metal oxides have ph less or grater than 7
5746.

What is an oxidation reaction?

Answer»

What is an oxidation reaction?

5747.

_________ is the main natural source of water.

Answer»

_________ is the main natural source of water.


5748.

CuSO4+Fe →FeSO4+ Cu FeSO4+Zn →ZnSO4+ Fe Which of the following statement is true on the basis of above reactions?

Answer»

CuSO4+Fe →FeSO4+ Cu

FeSO4+Zn →ZnSO4+ Fe

Which of the following statement is true on the basis of above reactions?


5749.

Which of the following is/are salient features of the activity series?

Answer»

Which of the following is/are salient features of the activity series?


5750.

Oil is forced out of the earth during the primary recovery process due to:

Answer»

Oil is forced out of the earth during the primary recovery process due to: