(I) () 12 Paper Code 7514 :15 - DC,B,A :- Note:-You have four choices for each objective type question as A,B,C &D. The choice which you think is correct;fill that circle in front of that question number.Use marker or pen to fill the circles. Cutting or filling two or more circles will result in zero mark in that question. ( D )( C )( B )( A )QUESTIONSQ. 1

14131211 Perecntage by weight of hydrogen in ocean is?1.

0.750.800.330.254 The no. of moles of carbon in 4gram of coal is 2.

+4+3+2+1 I. The valancy of Fe inFeSO4 is 3.

kgm2s-1kgms-2Nskgms-1 The unit of angular momentum is 4.

NCOFII. III. Which element has highest electronegativity?5.

164pm

154pm77pm87pmIV. V. The atomic radius of carbon is 6.

321882 VI. Fourth period contains no. of elements.7.

2.0M1.0M0.50M0.25M Which solution has less water?8.

Electrolytic cell Galvanic cell Nelsons cell Downs cell Spontaneous chemical reaction takes place in9.

Fe2O3Fe2O3. nH2OFe(OH)3.nH2OFe(OH)3 VII. The formula of rust is 10.

+14+7+6+2 K2Cr2O7VIII. The oxidation no. of Chromium in K2Cr2O7.11.

MagnesiumSeliniumAluminium

Sodium Which metal is brittle?12.

2015(A) ----------S.S.C. PART-II(9th CLASS)CHEMSITRY(NEW COURSE)GROUP-I(2013-2015)() -

TIME ALLOWED:2.45 HOURSSUBJECTIVE 2.45 =

MAXIMUM MARKS:6363=

NOTE:- Write same question number -

& its part number on answer book,as given in question paper.

SECTION-I Attempt any five parts. 10=2x5 -2-

Define extraneous root? (i).

Solve the equation 3x-25 = 8x-1. (ii).

Define symmetric functions. -(iii).

Find the value of h by using synthetic division if 3 is the zero of the polynomial 2x33hx2+9. (iv).

Find p if the roots of equation x2x+p2 = 0 differ by unity. (v).

The difference of a number & its reciprocal is . find the number. (vi).

If , then find 5q? (vii).

Define continued proportion? (viii).

If y varies directly as cube of x & y= 81 when x= 3, so evaluate y when x = 5.(ix).

Attempt any six parts. 12=2x6 -3-

Define improper partial fraction? Give example. (i).

Resolve into partial fraction. (ii).

Prove the commutative property of intersection. (iii).

If A = {2,3,4,5} & B={2,4,6,8} form a relation R:AB = {xRy/y=2x^xA ,yB}, then find Dom R & Range R. (iv).

Define mapping? (v).

Show by Venn diagram (A. / (vi).

How many terms are frequently used in a continuous frequency distribution. Write down the names. 0.4M NaOH 500cm3(vii).

Define ogive? (viii).

The sugar contents for a random sample of 6 packs of juices of a certain brand are found to be 2.3,2.7,2.5,2.9,3.1&1.9 milligram. Find the median.(ix).

Attempt any five parts. 10=2x5 -4-

Without using calculator, find the value of (a)cos5400(b)sin3150 O2 (i).

Which of the following angles are coterminal with 120o(a) (b) (ii).

What are circular functions? (iii).

Differentiate b/w exterior & interior of circle? (iv).

If length of the chord & distance from centre is 4cm, then find the diameter of circle? KCO3(v).

In the given figure, find the semicircular area if (vi).

A 6cm long chords subtends an central angle of 300. Find it radius. HF(vii).

Define circum angle? (viii).

What is parameter?(ix).

(2)SECTION-II NOTE:- Attempt any three questions.- -

Solve by using quadratic formula (CH3COOH)5-() 3

4 -3.01 x 1023()

If & are roots of equation x2+mx+n = 0(), then find .

The surface area of the sphere varies directly as square of radius r & S = 16 when r = 2. Find r when S = 3646-()

Resolve into partial fractions.3()

If U = {1, 2, 3, 4,..,10} & A = {1,3,5,7,9} & B={2,3,5,8},the prove by Venn Diagram (AB47-()

Determine mode of following table.Classes09101920293039404950596069

Frequency 21059671

Calculate the values of trigonometric ratios of 300.

Draw two circles with radii 3cm & 2.5cm of their centers is 6.5cm apart. Then draw two transverse common tangents.3()

Show that parallelogram inscribed in a circle will be a rectangle.49-()

Prove that diameter of circle bisect each other.3()

3(NEW COURSE SESSION 2013-2015)-2015(A)-80 (MULTAN)