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# Career Point CP STAR Sample Paper for Class 12 : careerpoint.ac.in

Organisation : Career Point Ltd
Exam Name : CP STAR Scholastic Test For Analysis & Reward
Class : XII
Document Type : Sample Paper
Website : http://cpstar.careerpoint.ac.in/examination/cp-star-sample-paper.php

## Career Point CP STAR XII Std Sample Paper

Download the sample question paper of CP STAR Scholastic Test For Analysis & Reward for Class XII from the official website of Career Point Ltd.

Related : Career Point CP STAR Class 11th Sample Paper : www.pdfquestion.in/34912.html

## Section-A

Physics :
Q.1 In the circuit shown in figure the potential difference between the points C and D is balanced against 40 cm length of potentiometerwire of total length 100 cm. In order to balance the potential difference between the points D and E, where should jockey be pressed on potentiometer wire i.e. balance length is-
(1) 16 cm
(2) 32 cm
(3) 56 cm
(4) 80 cm

Q.2 A conductor with rectangular cross-section has dimensions (a × 2 a × 4 a) as shown in figure. Resistance across AB is R1, across CD is R2 and across EF is R3. Then
(1) R1 = R2 = R3
(2) R1 > R2 > R3
(3) R2 > R3 > R1
(4) None

Q.3 In the circuit shown, voltmeter reads 100V. Then L is
(1) 0.1 H
(2) 0.2 H
(3) 0.02 H
(4) 0.01 H

Q.4 If potential of 20 kV is applied across coolidge tube then wavelength that can not emitted from coolidge tube is
(1) 0.5 Å (2) 0.8 Å (3) 1 Å (4) 100 Å

Q.5 A wooden stick of length 3l is rotated about an end with constant angular velocity ? in a uniform magnetic field B perpendicular to the plane of motion. If the upper one-third of its length is coated with copper, the potential difference across the whole length of the stick is

## Section-B

Chemistry :
Q.26 Which of the following statements is incorrect ?
(1) When NaCl reacts with acidified dichromate, it forms CrO2Cl2 which forms yellow precipitate with NaOH
(2) K2Cr2O7 form deep blue solution of CrO5 with H2O2 in acidic medium
(3) KMnO4 is prepared form pyrolusite ore (MnO2)
(4) Both KMnO4 and K2Cr2O7 are coloured due to charge transfer spectra

Q.27 Assuming complete ionization, the solution having maximum freezing point will be –
(1) 1 M CaF2
(2) 1.5 M Al2(SO4)3
(3) 2 M NaCl
(4) 1 M AgNO3

Q.28 Consider the following complexes –
(i) K2PtCl6 (ii) PtCl4.2NH3
(iii) PtCl4.3NH3 (iv) PtCl4.5NH3
Their electrical conductances in aq. solutions are-
(1) 256, 0, 97, 404
(2) 404, 0, 97, 256
(3) 256, 97, 0, 404
(4) 404, 97, 256, 0

Q.29 On heating a mixture of Cu2O and Cu2S, we get
(1) Cu + SO2
(2) Cu + SO3
(3) CuO + CuS
(4) Cu2SO3

Q.30 Effective atomic number of Co(CO)4 is 35, hence it is less stable. It attains stability by –
(1) Oxidation of Co
(2) Reduction of Co
(3) Dimerization
(4) Both (2) and (3)

PCB :

## Section-C

Biology :
Q.51 What is the concentration of sodium & potassium when neuron is at resting potential-
(1) High K+ and high Na+ outside the neuron
(2) High K+ and low Na+ outside the neuron
(3) Low K+ and low Na+ outside the neuron
(4) Low K+ and high Na+ outside the neuron

Q.52 Observe the above diagram. Identify 1 to 8 –
(1) 1 – Temporal bone, 2 – Malleus,
3 – Incus, 4- Stapes, 5 – Cochlea,
6 – Eustachian tube,
7 – tympanic membrane,
8 – External auditory canal

(2) 1 – Tympanic membrane, 2 -Malleus,
3 – Incus, 4 – Stapes, 5 – Cochelea,
6 – Eustachian tube,
7 – Temporal bone,
8 – External auditory canal

(3) 1 – Temporal bone, 2 – Incus,
3 – Malleus, 4 – Stapes,
5 – Cochlea, 6 – Eustachian tube,
7 – Tympanic membrane,
8 – External auditory canal

(4) 1 – Temporal bone, 2 – Malleus,
3 – Incus, 4 – Cochlea, 5 – Stapes,
6 – Eustachian tube,
7 – tympanic membrane,
8 – External auditory canal

Q.53 Carotid artery supplies –
(1) Brain
(2) Skin
(3) Lung
(4) Limbs

Q.54 Blood calcium level can be increased by the administration of –
(1) glucagon
(2) parathormone
(3) thyroxine
(4) calcitonin

Q.55 Identify the parts in given diagram –
(1) A-Pharynx, B-Parathyroid, C-Thyroid, D-Trachea
(2) A-Pharynx, B-Thyroid, C-Parathyroid, D-Trachea
(3) A-Trachea, B-Parathyroid, C-Thyroid, D-Pharynx
(4) A-Pharynx, B-Trachea, C-Parathyroid, D-Thyroid

Q.56 Mark the series with odd –
(1) Spermatocyte, Prostate, Spermatid, Acrosome
(2) Endometrium, Graafian follicle, Polar body
(3) Vas deferens, Fallopian tube, Epididymis, Cowper’s gland
(4) Ovaries, Vagina, Bartholin’s gland, Corpus luteum

Q.57 Given below is a diagrammatic sketch of a portion of human male reproductive system. Select the correct set of the names of the parts labelled A, B, C, D –

Q.58 ZIFT is
(1) Embryo implantation in vivo fertilization
(2) Egg implantation for in vivo fertilization
(3) Embryo implantation after in-vitro fertilization
(4) Egg implantation after in vitro fertilization

Q.59 T-lymphocyte is produced in –
(1) Bone marrow
(2) Spleen
(3) Pancreas
(4) Thymus

Q.60 Which one of the following is a correct match?
(1) Filariasis – Taenia solium
(2) Syphilis – Treponema pallidum
(3) Malaria – Phlebotomus sp.
(4) Kala-azar – Anopheles stephensi