Chemistry

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Q651: Which part of the atmosphere is near to earth?

ماحول کا کون سا حصہ زمین کے قریب ہے؟

Troposphere

Ionosphere

Mesosphere

Stratosphere

Q652: Standard enthalpy change is measured at _____?

معیاری انفالپی تبدیلی _____ پر ماپا جاتا ہے؟

298°K

273°C

273°K

373°K

Q653: The color of KMnO₄ entirely disappears by the action of reducing agent is _____?

Aqueous ammonia

Basic medium

Acidic medium

None of these

Q654: Identify the false statement: Energy of IR is higher than the visible light, Energy of UV is higher than the visible light, Energy of IR is lower than the visible light, Energy of UV is higher than IR radiation

Energy of IR is higher than the visible light

Energy of UV is higher than the visible light

Energy of IR is lower than the visible light

Energy of UV is higher than IR radiation

Q655: A racemic mixture is a equimolar mixture of ______?

ایک ریسکم مرکب ______ کا ایک مساوی مرکب ہے؟

Enantiomers

Stereoisomers

Diastereomers

None of these

Q656: An equilibrium constant of 1 for a reaction means that the reaction is _______?

ایک ردعمل کے لئے 1 کا ایک مساوات کا مطلب یہ ہے کہ ردعمل _______ ہے؟

Not very favourable and will not form very much product

Very favourable and proceeds to mostly products with very little reactions left over

One that will yield 50% products and 50% reactants left over

None of these

Q657: The formula of Chlorohydrin is ______?

کلوروہائڈرین کا فارمولا ______ ہے؟

C(OH)3 - C(OH)2Cl

CH(Cl)2 - CH(OH)(Cl)

HO-CH2-CH(OH)(Cl)

None of these

Q658: Which of the following elements have the highest values of ionization energy?

مندرجہ ذیل میں سے کون سے عناصر میں آئنائزیشن توانائی کی اعلی اقدار ہیں؟

Transition elements

Inert gases

Alkaline earth metals

None of these

Q659: The sweetest sugar is ______?

سب سے میٹھی چینی ______ ہے؟

Glucose

Sucrose

Fructose

None of these

Q660: Hydrogenation of cis-2-butane produces _______?

Butane

Trans-butane

2-butane

None of these

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Chemistry

Q651: Which part of the atmosphere is near to earth?

Explanation

Q652: Standard enthalpy change is measured at _____?

Explanation

Q653: The color of KMnO₄ entirely disappears by the action of reducing agent is _____?

Explanation

Q654: Identify the false statement: Energy of IR is higher than the visible light, Energy of UV is higher than the visible light, Energy of IR is lower than the visible light, Energy of UV is higher than IR radiation

Explanation

Q655: A racemic mixture is a equimolar mixture of ______?

Explanation

Q656: An equilibrium constant of 1 for a reaction means that the reaction is _______?

Explanation

Q657: The formula of Chlorohydrin is ______?

Explanation

Q658: Which of the following elements have the highest values of ionization energy?

Explanation

Q659: The sweetest sugar is ______?

Explanation

Q660: Hydrogenation of cis-2-butane produces _______?

Explanation

Chemistry

Q651: Which part of the atmosphere is near to earth?

Explanation

Q652: Standard enthalpy change is measured at _____?

Explanation

Q653: The color of KMnO₄ entirely disappears by the action of reducing agent is _____?

Explanation

Q654: Identify the false statement: Energy of IR is higher than the visible light, Energy of UV is higher than the visible light, Energy of IR is lower than the visible light, Energy of UV is higher than IR radiation

Explanation

Q655: A racemic mixture is a equimolar mixture of ______?

Explanation

Q656: An equilibrium constant of 1 for a reaction means that the reaction is _______?

Explanation

Q657: The formula of Chlorohydrin is ______?

Explanation

Q658: Which of the following elements have the highest values of ionization energy?

Explanation

Q659: The sweetest sugar is ______?

Explanation

Q660: Hydrogenation of cis-2-butane produces _______?

Explanation

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