57805.Which of the following is correctly matched :
| I. சிந்து | கங்கோத்ரி |
| II. பிரம்மபுத்ரா | மானசரோவர் ஏரி |
| III. கோதாவரி | பெட்டூல் |
| IV. மகாநதி | அகத்தியர் மலை |
I
II
III
IV
57807.Which of the following facts are correct about prokaryotic cells
I.Prominent nucleus is absent
II. Nucleolus is present
III. Mitosis and meiosis cell divisions are takes place
IV. Enveloped cell organelles are absent
I.Prominent nucleus is absent
II. Nucleolus is present
III. Mitosis and meiosis cell divisions are takes place
IV. Enveloped cell organelles are absent
I and II are correct
I and IV are correct
II and III are correct
III and IV are correct
57809.Which of the following is correct?
Respiratory Quotient = Volume of CO2 liberated / Volume of O2 consumed
Respiratory Quotient = Volume of O2 liberated / Volume of CO2 consumed
Respiratory Quotient = Volume of O2 consumed / volume of CO2 liberated
Respiratory Quotient= Volume of CO2 consumed / Volume of O2 liberated
57811.The reaction which takes place at cathode of an electrochemical cell is
oxidation
neutralisation
reduction
substitution reaction
57813.An example of commonly used Insecticide is
Bordeaux mixture
2, 4-Dichloro phenoxy acetic acid
Dichloro diphenyl trichloro ethane
Arsenic
57815.Match the following elements with its Latin name :
| (a) Lead | 1.Stibium |
| (b) Antimony | 2.Plumbum |
| (c) Tin | 3.Kalium |
| (d) Potassium | 4.Stannum |
1 3 2 4
1 2 3 4
2 1 4 3
4 1 2 3
57817.If the focal length of a concave lens is 2 m, then the power of the lens is
2 dioptre
1dioptre
0.5 dioptre
- 0.5 dioptre
57819.The maximum temperature in a city on 7 days of a certain week was 34.8°C, 38.5°C,33.4°C, 34.7°C, 35.8°C, 32.8°C, 34.3°C. Find the mean temperature for the week
34.8°C
34.9°C
34.7°C
35.2°C
57821.A group of 100 candidates have their average height 163.8 cm with coefficient of variation 3.2. What is the standard deviation of their heights?
3.23
4.91
5.24
6.38
57823.The present ages of Reena and Usha are 24 years and 36 years respectively what
was the ratio between the ages of Usha and Reena, 8 years ago?
was the ratio between the ages of Usha and Reena, 8 years ago?
7:4
6:5
2:3
4:7
57829.Find the LCM of 3(a-1), 2 (a-1)2 , (a2 -1)
(a+1)2 (a +1)
(a-1)2 (a + 1)
6(a-1)(a +1)2
6(a-1)2 (a+1)
57833.The ratios of the respective heights and the respective radii of two cylinders are 1 : 2 and 2 : 1 respectively. Then their respective volumes are in the ratio.
4:1
1:4
2:1
1:2
57835.At what rate of interest a sum of money doubles itself in 10 years in simple interest?
10%
20%
50%
25%
57839.If a1 = -1 then find a2, a3 in an = $ \dfrac{a_{n-1}}{n+2},n>1 \forall n \in N $
1/4,1/20
-1/4,1/20
1/4,-1/20
-1/4,-1/20