POLYCET (2022) - 8
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మీకు ఏవైనా కీ లోపాలు దొరికితే లోపాలు మాకు తెలియజేయడానికి వెనుకాడవద్దు.
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In the figure DE || BC and AD : DB = 1 : 2 then ∆ADE : ∆ABC =
a. 1 : 4
b. 1 : 9
c. 4 : 1
d. 2 : 9
What are the exterior and the interior angles of an equilateral triangle in degrees?
a. 130, 60
b. 45, 45
c. 60, 60
d. 120, 60
∆ABC and ∆DEF are similar, AX, DY are medians. The ratio of areas of ∆ABC : ∆DEF = 4 : 9. If BX = 5 cm then find EF
A ladder 15 m long reaches a window which is 9 m above the ground on one side of a street. Keeping its foot at the same point, the ladder is turned to other side of the street to reach a window 12 m high. Find the width of the street
a. 21 m
b. 23 m
c. 15 m
d. 30 m
In ∆DEF, PQ || EF, PE = 3 cm, PD = 1.5 cm the find QF.
Two triangles ABC and PQR are similar. If AB = 3.6, PQ = 2.4 and PR = 5.4, then the value of AC is
The lengths of diagonals of a rhombus are 24 cm and 32 cm then the perimeter of rhombus is
In an isosceles triangle PQR, PR = QR and PQ2 = 2PR2 then angle R in degrees
Two triangles ABC and PQR are similar. If AB = 3.6, PQ = 2.4 and PR = 5.4, find AC
If a man walks 6m to East and 8m to North. Now he is at a distance of ___ from origin point
a. 14 m
b. 2 m
c. 10 m
d. 48 m
Magnesium loses this number of electrons to obtain neon configuration
Which of the following statements about an element whose atomic number is 16 is wrong ?
a. It is a non-metal
b. It is a non-metal with a valency of 2
c. It forms a hydride of formula H2X
d. It forms covalent compound when reacts with sodium
Which of the following forces are the strongest ?
a. Ion – dipole forces
b. H – bond forces
c. Ion – ion forces
d. Dipole – dipole forces
Noble gases belongs to this group
a. VIII A
c. VI A
d. VII A
Which compounds exhibit high melting and boiling points ?
a. Chemical compound
b. Chemical compound & Ionic compound
c. Ionic compound
What are true about Lewis dot structures of molecules ?
b. Octets of both the atoms get completed
c. Each bond is formed as a result of sharing of an electron pair between the atoms
d. Each combining atom contributes one electron to the shared pair
Ionic bond is formed between atoms of elements with electronegativity differences————–
Nitrogen forms a ………….covalent bond
The shape of the ammonia molecule is
d. Trigonal planar
Electrons in ………….shell orbit are called valence electrons
a. No shell provide
b. Inner most
c. Outer most
Find wrong statement about meiosis
a. Meiosis has 2 stages
b. Meiosis occurs during gamete formation
c. Four daughter nuclei formed
Pathway of sperm release from testes is
a. Epididymis, Seminal duct, Urethra
b. Epididymis, Urethra, Seminal duct
c. Urethra, Epididymis, Seminal duct
d. Seminal duct, Epididymis, Urethra
Condom provides protection against
a. Infection diseases
b. Tropical diseases
c. Viral diseases
d. Sexually transmitted diseases
In asexual reproduction of the following group , a large number of spores are formed in special structures
d. All the above
Breast feeding is the best feeding because it
a. Enhances immunity
b. Protects against allergies
c. Reduces chances of immediate pregnancy
The main purpose of sexual reproduction are
a. Single organism
b. Only mitotic division
c. Formation of gametes
d. Production of identical offspring resembling parent
Organisms are capable of giving rise to offspring by the process of
Carpels produce female sex cells in
The result of sexual reproduction cannot guarantee the following
a. Recombination of genetic material
b. Production of new characters in the offspring
c. Production of identical offspring
d. Occurrence of reduction division before gamete formation
Umbilical cord develops from