BASICS OF EVERY DAY SCIENCE EDS
Basics of Every Day Science EDS
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
گرم ہونے پر کے سی ایل کا سیر شدہ محلول _______ ہو جاتا ہے؟
Unsaturated
Supersaturated
Diluted
All of these
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Explanation
When a saturated solution of KCl (potassium chloride) is heated, the solubility of KCl increases, allowing more KCl to dissolve in the solution. If the solution is heated to a temperature where all the KCl dissolves, it becomes a supersaturated solution. A supersaturated solution contains more dissolved solute than it can hold at a given temperature, making it unstable.
ایک مرکب ______ کا یکساں مرکب ہے؟
Two solids
Two liquids
Two gases
Solid and liquid
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Explanation
An alloy is a homogeneous mixture of two or more metals, or a metal and a non-metal, in a solid state.The components of an alloy are typically mixed when they are molten, and then solidified to form a uniform solid solution.
مائع کے مالیکیول بخارات کے عمل میں مائع کی سطح کو چھوڑ دیتے ہیں کیونکہ ______؟
Energy is low
Energy is moderate
Energy is high
None of these
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Explanation
In the evaporation process , liquid molecules gain energy and move faster.It allowing them to escape from the surface of the liquid into the surrounding air.This occurs when the molecules have enough energy to overcome the intermolecular forces holding them to the surface.
مندرجہ ذیل میں سے کون سی مادے کی سب سے ہلکی شکل ہیں؟
Solid
Liquid
Gases
Plasma
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Explanation
Plasma is a state of matter where atoms or molecules are ionized, meaning they have lost or gained electrons, resulting in a collection of charged particles. Plasma is often referred to as the fourth state of matter. It is the lightest form of matter, as the particles are highly energetic and widely spaced.
مندرجہ ذیل میں سے کون سا ٹھوس میں تیز پگھلنے کا نقطہ ہے؟
Plastic
Rubber
Glass
Diamond
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Explanation
Diamond is a crystalline solid that has a sharp melting point. Meaning it melts at a specific temperature (around 4000 K) with a minimal range.
مائعات کی نقل و حرکت ______ سے کم ہے؟
Solids
Gases
Plasma
Bose Einstein Condensate
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Explanation
Liquids have a lower mobility than gases. In a liquid, the molecules are close together and have a certain degree of attraction, which limits their ability to move freely. In contrast, gas molecules are widely spaced. It have little attraction, allowing them to move more freely and rapidly.
مندرجہ ذیل میں سے کون سا نقطہ ابلتے کو متاثر نہیں کرتا؟
Intermolecular forces
External pressure
Initial temperature of liquid
Nature of liquid
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Explanation
The initial temperature of a liquid does not affect its boiling point. The boiling point is the temperature at which a liquid changes state to a gas at a given pressure.It is a physical property of the substance itself.
ایک ماحولیاتی دباؤ _____ کے برابر ہے؟
10325 Pascal
106075 Pascal
10523 Pascal
101325 Pascal
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Explanation
One atmospheric pressure , also known as standard atmospheric pressure.It is defined as 101325 Pascals (Pa). This is the pressure exerted by the weight of the atmosphere at sea level.It is used as a standard unit of pressure.
نقطہ انجماد کا انحصار ______ پر ہے؟
Nature of liquid
Pressure
Temperature
Volume
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Explanation
The freezing point of a liquid can be affected by pressure. This is known as the " pressure melting point " effect. As pressure increases , the freezing point of a liquid can also increase.
مائع کا بخارات کا دباؤ ______ کے ساتھ بڑھتا ہے؟
Increase of pressure
Increase of temperature
Increase of intermolecular forces
Increase the polarity of molecules
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Explanation
Vapor pressure is the pressure exerted by the vapor of a liquid in equilibrium with its solid or liquid phase.As temperature increases, the molecules of a liquid gain kinetic energy and move more rapidly. Increasing the number of molecules that escape into the vapor phase, thereby increasing the vapor pressure.
