**1.**The number of waves in n x 10th Bohr’s

orbit are

A. n

^{2}
B. n

C. n

^{-2}
D. n

^{3}**2.**The mass of one Avogadro number of

helium atom is

A. 1.00 gram

B. 4.00 gram

C. 8.00 gram

D. 4 x 6.02 x 1023 gram

**3.**The items amenable to detection by

soft x-rays are

A. contrabands

B. lead in bullets

C. narcotics

D. genuine coins from counterfeit coins

**4.**The material which can be deformed

permanently by heat and pressure is called a

A. thermoplastic

B. thermo set

C. chemical compound

D. polymer

**5.**The mass number of a nucleus is

A. always less than its atomic number

B. the sum of the number of protons and neutrons

present in the nucleus

present in the nucleus

C. always more than the atomic weight

D. a fraction

**6.**The inexpensive and commonly used

variety of glass is called soda glass. It is called so because

A. was used initially for making bottles of

soda(carbonated drink)

soda(carbonated drink)

B. is made using soda(sodium carbonate)

C. was initially used for storing sodium

carbonate

carbonate

D. is made using soda lime

**7.**The graphite rods in the nuclear

reactor

A. react with U to release energy

B. produce neutrons

C. undergo combustion which triggers the nuclear

fission

fission

D. convert fast moving neutrons into thermal

neutrons

neutrons

**8.**The first metal used by man was

A. iron

B. copper

C. gold

D. bronze

**9.**The hydronium ion is

A. H

^{+}
B. HO

^{–}
C. H

_{2}^{+}
D. H

_{3}O^{+}**10.**The most electropositive elements

among the following is

A. Na

B. Ca

C. K

8-b

9-d

10-a

Thank u soo much,

Mam plz reply me,,,,4th answer is thermoplastic???

Refresh!

REASONING : QUIZ ON ODD ONE OUT

http://www.sscadda.com/2015/04/reasoning-quiz-on-odd-one-out.html

Gud evening mam,

GE Kumar :):)

Omg finally mam replyed me,,,thank u sooo much mam,,,

:):)

Thermoset, or thermosetting, plastics are synthetic materials that strengthen during being heated, but cannot be successfully remolded or reheated after their initial heat forming…….that means deformed……so thermoset is right

Thank u sir

It is like irreversable reaction,,

Mam plz tell me final year is sal exam diya june tk

result aayega kya cgl 2015 form fill kr skte h

clear out confusion plz plz plz plz

2nd is wrong itvshould be d

Q2..Avogadro's number is an absolute number: there are 6.022Ã—10^23 elementary entities in 1 mole.

here no of helium atom= one Avogadro number

no of helium atom= 6.022Ã—10^23 atom

and molecular wt of helium=4

as we know

(weight/molecular wt)= (no of atoms/6.022Ã—10^23)

(weight/4)=(6.022Ã—10^23/6.022Ã—10^23)

weight/4 = 1

weight = 4 gram

A bowl in the shape of a hemisphere with radius 10 cm is filled with water. If the bowl is tilted by 30 degree causing some of the water to spill out, how much water remains in the bowl after it is restored to an upright position?

i think this type of Qs ask in IIT not in ssc/ bank but i will try to solve this

tell me ans sweety..

ask to sahil on reasoning quiz…

mam…any information regarding food corporation exam..????…

If the diffr. Between the digits of a 2 digit no is 4 nd the ratio between the 10's place digit nd unit digit is 1:3 .then find the sum of 2 digits………

1)9. 2)6. 3)12. 4)8

4 ?

ho gya ,, lkn ans bda azzeb sa a rha h.. root me h :0

No

sine component lekr kya h… to b yhi a rha h

ans-8

are sory mne glti se differnce h nikal dya .. or vo h ques m puchah haha

ques pdte h mne to 26 as a nmbr socha tha… ans is 8

hemisphere vle ka kya aya

bhai ans pta chal jaye to bta sakta hun.. kyo ki mai apne ans pr sure nhi hun

yr ruk m apna ans snd krta hu

okk

yr mje b confusn hi h…agr sine component lkr krta hu to 2/3pie *875 a rha h….

or agr generly dkhe to syad ans 2/3 of original volume b ho skta h

kya image attach kr sakte ho…

bhai itni der se vohi try kr rha tha ho n rhi…tra answer kya a rha h

yar mai abhi oral he kiya hai..morning me try karunga

625*22/21 ?

hey shadow pls help me in solving these i have posted but nt replied by any one

Pipes A & B can fill a tank in 20 mins and 30 mins respectively and C can empty it in 15 mins. A is opened for a min & then closed . B is then opened for a min and closed. C is then opened for a min and then closed. This process is repeated untill the tank is filled. Find the time taken to fill the tank.?

A & B can do a work in 12 days, B & Ccan do it in 16 days.

All of them started the work together ,after working for 5 days , A left, B worked foe another 2 Days and left, C completed the remaining work after having worked for a total of 13 days. In how many days could C do the work?

180 mnt

right ans shadow…… :))

thnx :))

sorry for the late reply…

A+B =1/12, B+C = 1/16

since ll of them started the work together after working for 5 days

A left, then work done by A= 5 days

B worked for another 2 Days and left

then work done by B= 5+2=7 days

C completed the remaining work in 13 days

then work done by C= 13 days

5A+7B+13C = 1

(5A+5B)+(2B+2C)+11C =1

5*1/12 +2*1/16 +11C =

5/12 +1/8 +11C= 1

11C=1-(5/12 +1/8)

11C=11/24

C=1/24

work done by C =24 daysA B C LCM

20min 30min -15min 60

3 2 -4

here (+) means fill

(-) means empty

since A,B & C work alternative by the period of 1 min

work done by A,B & C to fill the tank in 3 min

3 min(A+B+C)= 3+2-4

3 min(A+B+C)= 1(work)

multiply both side by 60 b/c total work is done by A,B & C is 60(LCM)

3*60(A+B+C) = 1*60= 60

means time taken by A,B & C will take to fill =180 minLove U Everyone…………

167min?

250*3^(1/2)*pie????

very easy. 8

U R RIGT BUNNY

and bro pls tel me if any group in wats app for banking aspirants if any

No idea. You go to bankersadda and ask this question. They will tell you.