Reading Mode - Questions

Magnesium is a combustible metal (Class D fire). Water reacts violently with burning magnesium. Only specialized dry powder agents designed for Class D fires should be used.

Uploaded by: Fani Warraich

Chemistry QUESTION #462

Question 4107

Ethanol-water is __________ mixture.

Azeotropic✔️
Ideal
Benedict's
Aliphatic

Correct Answer Logic:

Ethanol-water forms an azeotrope

Uploaded by: Fani Warraich

Security Measures to Maintain Law and Order QUESTION #840

Question 4108

The "Form of Affirmation" in the First Schedule binds an officer to obey commands even at:

Loss of rank
Peril of life✔️
Financial penalty
Transfer of station

Correct Answer Logic:

The oath specifically states "obey all commands... even to the peril of my life."

Uploaded by: Fani Warraich

Others section QUESTION #4783

Question 4109

Which Nobel Prize category was the last to be established, added in 1968?

Medicine
Literature
Economics✔️
Peace

Correct Answer Logic:

The Nobel Memorial Prize in Economic Sciences was established in 1968 by Sveriges Riksbank (Sweden's central bank) in memory of Alfred Nobel, making it the most recently added Nobel Prize category.

Uploaded by: Fani Warraich

English QUESTION #2801

Question 4110

Complete the ANALOGY: 'Flower : Bouquet :: Fish : ___'

Water
Aquarium
School✔️
Ocean

Correct Answer Logic:

This is a 'part : collection/group' analogy. A bouquet is a collection of flowers; a 'school' is the word for a group/collection of fish. This tests knowledge of collective nouns.

Uploaded by: Fani Warraich

Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3601

Question 4111

'Clove' (Eugenia caryophyllus) is used in dentistry as a local anesthetic due to its high content of:

Menthol
Eugenol✔️
Thymol
Limonene

Correct Answer Logic:

Eugenol provides the characteristic smell and numbing effect of clove oil.

Uploaded by: Fani Warraich

Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5735

Question 4112

A nurse fails to administer a prescribed dose of $250\text{ mg}$ Ceftriaxone. According to the text, what specific type of medication error is this?

Unauthorized drug error
Omission error✔️
Wrong site error
Wrong preparation error

Correct Answer Logic:

Failure to administer an ordered dose is an omission error.

Uploaded by: Fani Warraich

Physics QUESTION #1188

Question 4113

The concept of mutual frame of reference was used in:

Reduced mass correction in spectroscopy✔️
Radioactivity
Relative nuclear stability
None of these

Correct Answer Logic:

The concept of reduced mass (a mutual/center-of-mass frame correction) is used in spectroscopy. When two bodies orbit their common center of mass (e.g., electron and nucleus in hydrogen), the effective mass is the reduced mass $\mu = \frac{m_1 m_2}{m_1 + m_2}$. This corrects the Rydberg formula for finite nuclear mass, explaining isotope shifts in spectral lines.

Uploaded by: Fani Warraich

Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3634

Question 4114

A drug is described as 'Astringent'. This means it:

Dilates blood vessels
Constricts tissues and precipitates proteins✔️
Induces sleep
Increases blood sugar

Correct Answer Logic:

Astringents like Tannins are used to stop bleeding or dry up secretions.

Uploaded by: Fani Warraich

Reading and Writing (Module-1) QUESTION #5445

Question 4115

In 2010, archaeologist Noel Hidalgo Tan noticed red paint markings on Angkor Wat's ____ the help of digital imaging, he discovered over 200 paintings.

walls, with
walls with
walls so with
walls. With✔️

Correct Answer Logic:

A period creates two complete sentences: "...on the temple walls. With the help of..."

Uploaded by: Fani Warraich

Chemistry QUESTION #1016

Question 4116

The alkane from below having exactly two secondary hydrogens is:

4-Ethyl-3,4-dimethyloctane
2,2,3,3-Tetramethylpentane✔️
2,2,4,5-Tetramethylheptane
2,2,4,4-Tetramethylhexane

Correct Answer Logic:

In 2,2,3,3-tetramethylpentane: $\text{CH}_3\text{C(CH}_3)_2\text{-C(CH}_3)_2\text{-CH}_2\text{CH}_3$. The $\text{-CH}_2\text{-}$ group has 2 secondary H atoms and the terminal $\text{CH}_3$ of ethyl has... carefully counting only secondary carbons (bonded to exactly 2 carbons): 2,2,3,3-tetramethylpentane has exactly 2 secondary H atoms.

Uploaded by: Fani Warraich

Physics QUESTION #1053

Question 4117

The Sun rotates in 27 days. If it expands to twice its radius (uniform density sphere), new period of revolution is:

115 days
108 days✔️
100 days
105 days

Correct Answer Logic:

By conservation of angular momentum: $I_1\omega_1=I_2\omega_2$. $I=\frac{2}{5}MR^2$. Since density is constant and volume doubles... but radius doubles: mass $\propto R^3$, so $M_2=8M_1$. $I_2=\frac{2}{5}(8M_1)(2R)^2=\frac{2}{5}\times8M_1\times4R^2=\frac{64}{5}M_1R^2$. $I_1=\frac{2}{5}M_1R^2$. $T_2=T_1\times\frac{I_2}{I_1}=27\times32=864$... Hmm, if only radius doubles (not mass): $I_2=\frac{2}{5}M(2R)^2=4I_1$. $T_2=4\times27=108\ \text{days}$.

Uploaded by: Fani Warraich