POLYCET (2022) -1

If a vertex of a parallelogram is (2, 3) and the diagonals cut at (3, -2), then the opposite vertex to (2, 3) is
a. (2 , -5)
b. (-2 , -8)
c. (4 , -7)
d. (1 , -2)

10. If (0, 0), (5, 12) and (16, 12) are the vertices of a triangle, then the incentre of that triangle is
a. (7 , 9)
b. (7 , 0)
c. (1 , 3)
d. (-1 , 9)

The perpendicular distance from origin to a straight line, whose intercepts on coordinates axes are 4, -3 respectively is ___ units.
a. 5
b. 12/5
c. 12
d. 13/5

What is the atomic number of an element next to Nitrogen in group V of periodic table ?
a. 17
b. 15
c. 9
d. 14

Which of the following is alkali metal
a. Calcium
b. Sulphur
c. Potassium
d. All

Which of the following elements family belongs to 16(VI A) group ?
a. Nitrogen family
b. Boron family
c. Carbon family
d. Oxygen family

Which of the following is d-block element ?
a. Scandium
b. Carbon
c. Aluminium
d. Sodium

Which block elements are called transition elements ?
a. f – block
b. d – block
c. s – block
d. p – block

In modern periodic table each period ends with
a. Metalloids
b. Noble gases
c. Metals
d. Non-metals

Which defect of Medeleeff’s periodic table is automatically overcome by shifting the basis from atomic number ?
a. Position of isotopes
b. Position of hydrogen
c. Placing coinage metals along with alkali metals
d. All

Which of the following is false statement ?
a. Group I elements are called alkali metals
b. The last member of the halogen family is Astatine.
c. Some compounds of the noble gas xenon are known
d. Third period of periodic table can have a maximum of eighteen elements

In a period I.E. decreases due to
a. Increase in number of shells
b. Decrease in nuclear charge on valance electrons
c. All
d. Increase in atomic size

In modern periodic table Lanthanoids and Actinoids belongs to …..
a. p – block elements
b. f – block elements
c. s – block elements
d. d – block elements

10% of water passes out of filtrate in Henley loop through
a. Diffusion
b. Reverse osmosis
c. Osmosis
d. None

Malphigian tubes are excretory organs in
a. Earthworm
b. Housefly
c. Flatworm
d. Hen

In Latin ‘crenere’ means
a. Send
b. Throw
c. Shift
d. Out

Excretory organs of mollusca are
a. Meta nephridia
b. Nephridia
c. Kidney
d. Canal system

Reserpine is used as
a. Medicine for snake bite
b. Medicine for dengue
c. Insecticide
d. None

Use of pyrethroid
a. Insecticide
b. Sedative
c. Anti malarial drug
d. Pain killer

Useful substances in primary urine are reabsorbed into
a. Urethra
b. Peri tubular network
c. Pelvis
d. Ureter

Dialysis machine is used to filter the blood of a person when
a. One kidney is damaged
b. Both kidneys are damaged
c. Liver is damaged
d. All the above

These are primary metabolites
a. Carbohydrates
b. Fats
c. Proteins
d. All

Liver produces bile pigments such as
a. Bilirubin
b. Biliverdin
c. Urochrome
d. All