Chemistry

Q901: In which of the following reactions is a new carbon-carbon bond not formed?

مندرجہ ذیل میں سے کون سا رد عمل میں نیا کاربن کاربن بانڈ تشکیل نہیں دیا گیا ہے؟

Cannizzaro reaction

Wurtz reaction

Aldol condensation

None of these

Q902: Which of the following chemical is used in the processing of anti-polio vaccine?

اینٹی پولیو ویکسین کی پروسیسنگ میں مندرجہ ذیل میں سے کون سا کیمیکل استعمال ہوتا ہے؟

Formaldehyde

Ethyl acetate

Methanol

None of these

Q903: Which of the following gas explodes on compression to a liquid?

مندرجہ ذیل میں سے کون سا گیس مائع پر کمپریشن پر پھٹتا ہے؟

Ethyne

Ethane

Methane

None of these

Q904: Which one of these is heterocyclic compound? a. Benzene b. Pyridine c. Phenol d. Alcohol

ان میں سے کون سا ہیٹروسائکلک مرکب ہے؟

Benzene

Pyridine

Phenol

Alcohol

Q905: If one mole of gaseous hydrogen is mixed with one mole of gaseous iodine in an empty container then with the passage of time rate of?

The forward reaction increases

Both forward and reverse reaction remains unaffected

The reverse reaction decreases

The forward reaction decreases

Q906: Which one of the following is not an isomorphous pair?

مندرجہ ذیل میں سے کون سا آئسومورفس جوڑی نہیں ہے؟

Na₂CO₃, CaCO₃

NaF, MgO

K₂SO₄, K₂Cr₂O₇

None of these

Q907: Absorbance of solution at 100% T is?

0.0

100

0.100

None of these

Q908: White Chromium II metal complexes in open change in colour ______?

رنگ میں کھلی تبدیلی میں سفید کرومیم ٹو میٹل کمپلیکس ______؟

Red

Yellow

Green

None of these

Q909: At the same temperature and pressure two identical balloons were separately filled with oxygen and hydrogen. If O2 escaped at the rate of 100ml per second the hydrogen will escape at rate of _____?

800 ml per second

400 ml per second

160 ml per second

None of these

Q910: The IUPAC name of Mesitylene is ______?

میسٹلین کا آئی یو پی اے سی نام ______ ہے؟

1,2,3-Trimethylcyclohexane

1,2,4-Trimethylbenzene

1,3,5-Trimethylbenzene

None of these

Q901: In which of the following reactions is a new carbon-carbon bond not formed?

Explanation

Q902: Which of the following chemical is used in the processing of anti-polio vaccine?

Explanation

Q903: Which of the following gas explodes on compression to a liquid?

Explanation

Q904: Which one of these is heterocyclic compound? a. Benzene b. Pyridine c. Phenol d. Alcohol

Explanation

Q905: If one mole of gaseous hydrogen is mixed with one mole of gaseous iodine in an empty container then with the passage of time rate of?

Explanation

Q906: Which one of the following is not an isomorphous pair?

Explanation

Q907: Absorbance of solution at 100% T is?

Explanation

Q908: White Chromium II metal complexes in open change in colour ______?

Explanation

Q909: At the same temperature and pressure two identical balloons were separately filled with oxygen and hydrogen. If O2 escaped at the rate of 100ml per second the hydrogen will escape at rate of _____?

Explanation

Q910: The IUPAC name of Mesitylene is ______?

Explanation

Chemistry

Q901: In which of the following reactions is a new carbon-carbon bond not formed?

Explanation

Q902: Which of the following chemical is used in the processing of anti-polio vaccine?

Explanation

Q903: Which of the following gas explodes on compression to a liquid?

Explanation

Q904: Which one of these is heterocyclic compound? a. Benzene b. Pyridine c. Phenol d. Alcohol

Explanation

Q905: If one mole of gaseous hydrogen is mixed with one mole of gaseous iodine in an empty container then with the passage of time rate of?

Explanation

Q906: Which one of the following is not an isomorphous pair?

Explanation

Q907: Absorbance of solution at 100% T is?

Explanation

Q908: White Chromium II metal complexes in open change in colour ______?

Explanation

Q909: At the same temperature and pressure two identical balloons were separately filled with oxygen and hydrogen. If O2 escaped at the rate of 100ml per second the hydrogen will escape at rate of _____?

Explanation

Q910: The IUPAC name of Mesitylene is ______?

Explanation

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