Chemistry

Q671: Boyle’s and Charles’s Laws are readily explained in terms of the _______?

بوئلز اور چارلس کے قوانین _______ کے معاملے میں آسانی سے بیان کیے جاتے ہیں؟

Le Chatelier’s principle

Kinetic molecular theory

De Broglie wave theory

None of these

Q672: The product of the reaction between an alcohol and a carboxylic acid is called ______?

الکحل اور کاربو آکسیلک ایسڈ کے مابین رد عمل کی پیداوار کو ______ کہا جاتا ہے؟

Ester

Amide

Alkoxide

None of these

Q673: In chromotherapy the mobile phase is called _____?

کروموتھراپی میں موبائل مرحلے کو _____ کہا جاتا ہے؟

Fluent

Elution

Eluate

None of these

Q674: What type of sample cuvette should be used for measuring the absorbance of a molecule at 220 nm?

دو سو بیس ینیم پر انو کے جذب کی پیمائش کے لئے کس قسم کے نمونہ کیویٹ کو استعمال کیا جانا چاہئے؟

Glass

Quartz

Plastic

None of these

Q675: Which of the bonds shown by a dash --- has the greatest polarity?

H ----- F

H ----- OH

H ----- NH3

None of these

Q676: What would be the volume in liters of 640g of oil if the density of the oil is 0.8g/ml?

512 liters

0.8 liter

800 liters

None of these

Q677: Array of points which show how the constituent particles of a crystal are arranged at different sites in 3 dimensional space is called ______?

پوائنٹس کی صف جو یہ ظاہر کرتی ہے کہ کس طرح ایک کرسٹل کے اجزاء کے ذرات کو 3 جہتی جگہ میں مختلف سائٹوں پر ترتیب دیا جاتا ہے اسے ______ کہا جاتا ہے؟

Crystal lattice

Lattice array

Space lattice

None of these

Q678: The unit of Kc for reaction N2 + O2 ⇌ 2NO?

mol dm^-3

mol^-2 dm^6

mol^-1dm3

No unit

Q679: Ethyne can be prepared using 1, 2-dibromoethane as starting material. What else is used in preparation?

H2 gas

Alcoholic KOH

KMnO4

None of these

Q680: The total number of elements in S-block is _____?

ایس بلاک میں عناصر کی کل تعداد _____ ہے؟

14

24

12

None of these

Q671: Boyle’s and Charles’s Laws are readily explained in terms of the _______?

Explanation

Q672: The product of the reaction between an alcohol and a carboxylic acid is called ______?

Explanation

Q673: In chromotherapy the mobile phase is called _____?

Explanation

Q674: What type of sample cuvette should be used for measuring the absorbance of a molecule at 220 nm?

Explanation

Q675: Which of the bonds shown by a dash --- has the greatest polarity?

Explanation

Q676: What would be the volume in liters of 640g of oil if the density of the oil is 0.8g/ml?

Explanation

Q677: Array of points which show how the constituent particles of a crystal are arranged at different sites in 3 dimensional space is called ______?

Explanation

Q678: The unit of Kc for reaction N2 + O2 ⇌ 2NO?

Explanation

Q679: Ethyne can be prepared using 1, 2-dibromoethane as starting material. What else is used in preparation?

Explanation

Q680: The total number of elements in S-block is _____?

Explanation

Chemistry

Q671: Boyle’s and Charles’s Laws are readily explained in terms of the _______?

Explanation

Q672: The product of the reaction between an alcohol and a carboxylic acid is called ______?

Explanation

Q673: In chromotherapy the mobile phase is called _____?

Explanation

Q674: What type of sample cuvette should be used for measuring the absorbance of a molecule at 220 nm?

Explanation

Q675: Which of the bonds shown by a dash --- has the greatest polarity?

Explanation

Q676: What would be the volume in liters of 640g of oil if the density of the oil is 0.8g/ml?

Explanation

Q677: Array of points which show how the constituent particles of a crystal are arranged at different sites in 3 dimensional space is called ______?

Explanation

Q678: The unit of Kc for reaction N2 + O2 ⇌ 2NO?

Explanation

Q679: Ethyne can be prepared using 1, 2-dibromoethane as starting material. What else is used in preparation?

Explanation

Q680: The total number of elements in S-block is _____?

Explanation

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