Question

JJJJJOS 3. L, 23,8 - 30 - 2020
S.S.L.C. Practice Paper - January - 2020
Time 315 Hrs
Sub GEN SCIENCE
Max Marks 80
EM
out alternatives are given for each incomplete statement question Choose the
correct or most appropriate answer and write it's Alphabet along with Answer
1. The plant part which exhibits negative geotropism is
A) Root
(B) Stem
(C) Branch (D) Leaves
X1
2
The chemical reaction between quick lime and water is characterised by
A) evolution of hydrogen gas
(B) formation of slaked lime precipitate
change in temperature of mixture (D) change in colour of the product
3. At the time of short circuit, the current in the circuit
A) Reduces substantially
(B) does not change
C) increases heavily
(D) varies continiously
Which of the following is not an example of a biomass energy source
A) Wood
(B) Gobar gas
(C) Nuclear energy (D) Biomass
5
The process of digestion in humans is completed in
A Oesophagus (B) Small intestine(C) Stomach
(D) Large Intestine
the atomic numbers of four elements P Q R and S are 6. 10. 12 and 17
respectively. Which two elements can combine to form a covalent compound
A) P and R
(B) Q and S (C) P and S (D) R and S
7In the environment materials causing biomagnification
A) get recycled quickly
(B) decompose only in soil
C) remain, as permanent residues
D) are stored in less amount in trophic levels
utanone is a four carbon carbon compound having the functional group
A) -- COOH (B) _CHO (C) - Co (D) OH
8x1=8
11. Answer the following:
9. Calculate the electric current passing through the circuit when
the key is closed
5x2=10V
-
100
15
SCIENCE JAN 2020
PP​

Answer 1

Answer:

stem exhibits negative geotroism