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DON TEST - 1??????

INSTRUCTIONS:

The paper consists of 35 questions to be done in 1 hr. 15 min extra has been allotted for sending ur answers to higenius007@gmail.com .(please send it twice so that it can be confirmed).

15 MATHS QUESTIONS - 10 OBJECTIVE + 5 FILL IN THE BLANKS

12 CHEMISTRY QUESTIONS - 8 OBJECTIVE + 4 FILL IN THE BLANKS

8 PHYSICS QUESTIONS - 5 OBJECTIVE + 3 FILL IN THE BLANKS

TOPIC FOR THIS TEST IS :

MATHS - QUADRATIC EQUATIONS AND EXPRESSIONS

PHYSICS ? UNITS AND DIMENSIONS

CHEMISTRY- ONLY MOLE CONCEPTS

It will be on the site at 18:00Hrs.( 6 ?oclock)

NO MAILS WILL BE ENTERTAINED AFTER 19:15 Hrs???.OK??.

Write ur original name after submitting the test.(do not copy the question?.and write every answer in different line

WAIT UNTIL ITS 6 ' O CLOCK.

THANKU

DON007

PHYSICS TEST PAPER

1) THE Martians use FORCE(F) , ACCELERATION(A) , AND TIME (T) as their fundamental physical quantities. The dimension of length is :

1) FT² 2) F^-1T² 3) F^-1T^-1A²4) AT²

2) THE dimension of CV is same as

1) L²I 2) L²I²3) LI²4) 1/ LI

3) WHICH OF THE FOLLOWING REPRESENTS THE dimensions of kinetic energy

1) MLT² 2) ML^-2T^-2 3) ML^-2T² 4)ML²T^-2

4) DIMENSION OF GRAVITATIONAL CONSTANT IS

1) ML²T^-22) ML³T^-13)M^-1L³T^-24) M^-1L²T^-2

5) WHAT IS THE DIMENSIONS OF FORCE * DENSITY?.

1) ML⁴T^-22) M²L^-2T^-13)M²L^-2T^-2 4) ML^-2T^-2

FILL IN THE BLANKS

6) DIMENSION OF PLANK CONSTANT IS SAME AS __________.

7) DIMENSION OF CAPACITANCE IS__________.

8) DIMENSIONS OF RESISTANCE IS ______________.

CHEMISTRY TEST PAPER??

1) 600 ml of gaseous mixture of ideal oxygen and ozone was weighed 1 gm at STP. Calculate the volume of Oxygen in mixture.

1) 600 ml 2)400 ml 3) 200ml 4) 500ml

2) Arrange the following species in order of no. of atoms ?

a) 10gm of oxygen molecule

b) 10gm of ozone molecule

c) 10 gm of oxygen atom

1) a>b>c 2) c>b>a 3) a=b=c 4) b>c>a

3) In CI gas , ratio of CI35 and Cl37 is

1)1:3 2)3:1 3)1:1 4)4:1

4) 4.4g of an oxide of nitrogen gives 2.24L of nitrogen and 60g of another oxide of nitrogen gives22.4L of nitrogen at STP , the data illustrates

1)law of multiple proportions

2)law of reciprocal proportions

3)law of const. vol.

4)none of these

5)

The mass of oxygen that wud require to produce enuf CO which completely reduces 1.6kg Fe2O3 is

1)240g 2)480g 3)720g 4)960g

6) 1gm equivalent of a substance is equal to

1) 0.25 mole of oxygen 2) 0.50mole of oxygen 3) 1mole of oxygen 4) 8 moles of oxygen

7) A gas behaves closely as an ideal gas at

1) low pressure and low temperature 2) low pressure and high temp 3) high pressure and low temp 4) high pressure and high temperature.

8) The chloride of metal M contains 65.5% og chlorine 100ml of the vapour of the chloride of the metal weighs 0.72g at STP , mol. formlula of metal chloride is

1) MCI 2)MCI2 3)MCI3 4)MCI4

FILL IN THE BLANKS :

9) 20 gm of oxygen means _______ no. of moles.

10) 20gm of Oxygen atom means ________ no. of moles.

11) density of chlorine relative to air is ________.

12)Molality is the no. of moles dissolved in _______gm of solvent .

DON007

MATHS TEST PAPER

1) IF the quadratic equations ax² +2cx +b =0 and ax² +2bx +c=0 have a common root , then a+4b + 4c =

1) -2 2) -1 3) 0 4) 1

2) if A , G , H represents arithmetic mean , geometric mean , harmonic mean between two unequal positive no.s. then equation Ax² - |G| x ? H= 0 has

1) both roots r fractions 2) at least one root which is negative fraction

3) exactly one positive root 4) at least one root integer.

3) if 0<a<b<c, and the roots c , d of the equation ax² +bx +c =0 are non real complex no.s, then

1) |c| = |d| 2) |c|>1 3) |d| <1 4) none

4) If x² - 11x + a and x² - 14x + 2a have a common factor , then a = to ...

1)0,8 2)5,24 3)0,24 4)1,2

5) )The no. of values of k for wich the EQUATION x² - 3x + k = 0 has 2 distinct roots lying in the interval (0,1)are...

1)3 2)2 3)infinite 4)no value of k

6) for any real x , the erxpression 2(k-x)[x + sqrt(x² + k²)] can not exceed??

1 ) k² 2) 2k² 3) 3k² 4) 4k²

7) the quadratic equation whose root are the AM and HM between the roots of the equation ax2 +bx +c = 0 is

1) abx²+(b2+ac)x +bc=0 2) 2abx² + (b2+ 4ac)x+ 2bc =0

3) 2abx² + (b2 +ac)x +bc =0 4) none.

8) If the ratio of the roots of the =qn x2 + px + q = 0 be = to the ratio of roots of x2 + tx + m = 0 , then

1)p² m = q² t 2)p m² = q² t 3)p² t = q² m 4)p² m = t² q

9) Two students while solving a quadratic equation in x with leading coeff. ' I ' , one copied the const. term incorrectly and got the roots 3 , 2 . the other copied the correct term (-6) , the correct roots are....

1) -2 , 3 2)-3 , 2 3)-6 , -1 4)-1 , 6

10) If 3 + i is a root of x² + ax + b = 0 , where a,b belongs to R , then a equals to ....

1)3 2)-3 3)6 4 ) -6

FILL IN THE BLANKS :

11)IF THE ROOTS OF ax² +bx +c =0 (a,b,c means real) are imaginary and a+c< b, then

4a+ c < ____________.

12) if (x² -3x+2) is a factor of ( x⁴ ?px² +q) , then p and q r respectively _____________.

13) if the roots of the equation x² ? 2ax + a² +a-3 =0 are real less than 3 , then a<_________.

14) the difference between the corresponding roots of the equations x² +ax +b =0 and x2+bx +a=0 are same , then a+b = ______________.

15) the no. of quadratic equations which r unchanged by squaring their roots is_____________.

DON007

so time starts now...........

u have to submit ur answers till 19:15 Hrs.........

and all the best..........

if there is any confusion in the paper.....please ask it after the test is over.....

test is also on community shelf.....

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hey enjoy.....

DON007

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