SSC Pharmacist flashcards

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

Number series rule

Check differences, ratios, squares, cubes, alternating patterns, and prime gaps in that order before assuming a single rule; verify the rule against at least two consecutive terms.

Syllogism validity

A conclusion is valid only if it is true in every possible Venn diagram consistent with the premises; 'some A are B' does not imply 'all A are B'.

Blood relation notation

Use + for male, − for female, a horizontal line for siblings, and a vertical line for parent-child; never infer gender from a name alone.

Direction sense displacement

Net displacement is the vector sum of all movements; use Pythagoras for right-angle turns, and left/right depends on the current facing direction, not the page.

Coding-decoding letter shift

Map letters to positions A=1 through Z=26; for a shift cipher, apply the same offset to every letter and confirm with at least two coded examples before answering.

Circular seating arrangement

Fix the most constrained person first; clockwise and anticlockwise are distinct unless the question states otherwise; facing direction reverses left and right.

Indian Constitution adoption

The Constitution of India was adopted on 26 November 1949 and came into force on 26 January 1950; Fundamental Rights are in Part III (Articles 12–35).

National symbols of India

National bird: Indian peacock; national animal: Bengal tiger; national flower: lotus; national fruit: mango; national river: Ganga; national anthem: Jana Gana Mana.

RBI establishment

The Reserve Bank of India was established in 1935 and nationalised in 1949; it controls monetary policy, currency issuance, and banking regulation in India.

GST launch date

The Goods and Services Tax was launched in India on 1 July 2017, replacing multiple indirect taxes with a single destination-based tax on supply.

Tropic of Cancer in India

The Tropic of Cancer passes through eight Indian states, including Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, West Bengal, Tripura, and Mizoram.

Indus Valley Civilization sites

Major Indus Valley sites include Harappa, Mohenjo-daro, Lothal, Kalibangan, Dholavira, and Rakhigarhi; the civilization flourished around 2500–1500 BCE.

Successive percentage change

Two successive changes of a% and b% give a net change of a + b + ab/100 percent; use the sign of each change (increase positive, decrease negative).

Compound interest formula

CI = P[(1 + R/100)^T − 1]; for two years, the difference CI − SI equals P(R/100)^2, where P is principal, R is rate percent, and T is time in years.

Speed unit conversion

To convert km/h to m/s, multiply by 5/18; to convert m/s to km/h, multiply by 18/5. Relative speed adds for opposite directions and subtracts for same direction.

Sphere and cone volume

Volume of a sphere is (4/3)πr³; volume of a cone is (1/3)πr²h; volume of a cylinder is πr²h, where r is radius and h is height.

Permutation and combination

nPr = n!/(n−r)! counts ordered arrangements; nCr = n!/[r!(n−r)!] counts unordered selections; probability equals favourable outcomes divided by total outcomes.

Partnership profit share

In a partnership, profit shares are proportional to each partner's capital multiplied by the time the capital is invested, not to capital alone.

Subject-verb agreement rule

A singular subject takes a singular verb; each, either, neither, and everyone are singular; 'and' usually joins to a plural unless the pair forms a single idea.

Since versus for

Use 'since' with a point in time (since 2010) and 'for' with a duration (for five years); both commonly pair with present perfect tense.

Between versus among

Use 'between' for two persons or things and 'among' for more than two; 'between' can also express a relationship involving distinct pairs.

Active to passive voice

The object becomes the subject, the verb becomes be + past participle, and the original subject becomes an optional by-agent; tense is preserved.

Direct to indirect speech

Change pronouns to match the reporter, shift tense one step back unless the reporting verb is present, and change time and place words such as now to then and here to there.

Idiom: at the drop of a hat

The idiom 'at the drop of a hat' means immediately or without hesitation; it describes a prompt willingness to act.

Cloze test strategy

Read the entire passage first, then choose the option that fits both grammar and meaning; eliminate options that break collocation or sentence structure.

Bioavailability formula

F = (AUC oral / AUC IV) × (dose IV / dose oral); for intravenous administration, bioavailability is 1 by definition because there is no first-pass metabolism.

Half-life first-order

For first-order elimination, t½ = 0.693/k, where k is the elimination rate constant; half-life is independent of the initial plasma concentration.

Volume of distribution

Vd = dose / plasma concentration; it represents the apparent volume into which a drug distributes and helps estimate loading dose = Vd × target concentration.

Prescription abbreviation bd

bd means twice daily; related abbreviations include tds (three times daily), qid (four times daily), hs (at bedtime), ac (before meals), pc (after meals), and prn (as needed).

Autoclave sterilization conditions

Autoclaving uses steam at 121 °C and 15 psi for 15–20 minutes; dry heat sterilization uses 160 °C for 2 hours; membrane filtration at 0.22 µm suits heat-labile solutions.

Competitive antagonist effect

A competitive antagonist binds reversibly at the same site as the agonist, shifting the dose-response curve right without lowering Emax; a non-competitive antagonist lowers Emax.

Beer-Lambert law

Absorbance A = εcl, where ε is molar absorptivity, c is concentration, and l is path length; absorbance is directly proportional to concentration for dilute solutions.